Optimizing Apache Questions

Hi.. I have an issue with my Apache configuration, especially with WordPress websites. Can I find some help here? Server Information: Total processors: 4 Processor #1 Vendor: GenuineIntel Name:Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz Speed: 3092.831 MHz Cache: 3072 KB Processor #2 Vendor: GenuineIntel Name:Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz Speed: 3092.831 MHz Cache: 3072 KB Processor #3 Vendor: GenuineIntel Name:Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz Speed: 3092.831 MHz Cache: 3072 KB Processor #4 Vendor: GenuineIntel Name:Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz Speed: 3092.831 MHz Cache: 3072 KB total used free shared buffers cached Mem: 16311528 14743872 1567656 1157168 999432 7431040 -/+ buffers/cache: 6313400 9998128 Swap: 1953788 32440 1921348 Total: 18265316 14776312 3489004