cache performance issues

MariaDB [(none)]> SHOW PROCESSLIST;
+---------+--------------+-----------+--------------+---------+------+----------                                                                             +-------------------------------------------------------------------------------                                                                             -----------------------+----------+
| Id      | User         | Host      | db           | Command | Time | State                                                                                 | Info                                                                                                                                                                              | Progress |
+---------+--------------+-----------+--------------+---------+------+----------                                                                             +-------------------------------------------------------------------------------                                                                             -----------------------+----------+
| 1139415 | greentec_jam | localhost | greentec_jam | Query   |   89 | updating                                                                              | DELETE FROM jr_jrcore_cache WHERE (cache_item_id LIKE '%,85,%')                                                                                                                   |    0.000 |
| 1139432 | greentec_jam | localhost | greentec_jam | Query   |   22 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139433 | greentec_jam | localhost | greentec_jam | Query   |   16 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139444 | greentec_jam | localhost | greentec_jam | Query   |    5 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139447 | greentec_jam | localhost | greentec_jam | Query   |   49 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139450 | greentec_jam | localhost | greentec_jam | Query   |   49 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139456 | greentec_jam | localhost | greentec_jam | Query   |   39 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '31197d658d4b14d2b |    0.000 |
| 1139461 | greentec_jam | localhost | greentec_jam | Query   |   33 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '1070b93117c90eede |    0.000 |
| 1139462 | greentec_jam | localhost | greentec_jam | Query   |   31 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139463 | greentec_jam | localhost | greentec_jam | Query   |   30 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '1c3e4ccca32695f0f |    0.000 |
| 1139465 | greentec_jam | localhost | greentec_jam | Query   |   29 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139467 | greentec_jam | localhost | greentec_jam | Query   |   29 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139468 | greentec_jam | localhost | greentec_jam | Query   |   28 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139469 | greentec_jam | localhost | greentec_jam | Query   |   27 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '26338f17a054da759 |    0.000 |
| 1139472 | greentec_jam | localhost | greentec_jam | Query   |   26 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '638e799f8262b6f04 |    0.000 |
| 1139475 | greentec_jam | localhost | greentec_jam | Query   |   25 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139476 | greentec_jam | localhost | greentec_jam | Query   |   25 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139477 | greentec_jam | localhost | greentec_jam | Query   |   24 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139480 | greentec_jam | localhost | greentec_jam | Query   |   15 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139487 | greentec_jam | localhost | greentec_jam | Query   |   11 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '62f9dabb4705ddac4 |    0.000 |
| 1139488 | greentec_jam | localhost | greentec_jam | Query   |    9 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '56824e470ffbda06b |    0.000 |
| 1139491 | greentec_jam | localhost | greentec_jam | Query   |    9 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139494 | greentec_jam | localhost | greentec_jam | Query   |    7 | updating                                                                              | UPDATE jr_jrcore_cache SET cache_expires = (cache_expires + 30) WHERE cache_ke                                                                             y = '26338f17a054da759 |    0.000 |
| 1139495 | greentec_jam | localhost | greentec_jam | Query   |    5 | update                                                                                | INSERT INTO jr_jrcore_cache (cache_key,cache_expires,cache_module,cache_profil                                                                             e_id,cache_user_id,cac |    0.000 |
| 1139498 | greentec_jam | localhost | NULL         | Query   |    0 | init                                                                                  | SHOW PROCESSLIST                                                                                                                                                                  |    0.000 |
+---------+--------------+-----------+--------------+---------+------+----------                                                                             +-------------------------------------------------------------------------------                                                                             -----------------------+----------+
25 rows in set (0.00 sec)

MariaDB [(none)]>