Hi Aaron,
FOP2 does not hit on apache in any particular way, as it does not use http for retrieving status but its own socket connection.
It seems you have an issue with the FreePBX monitoring daemon that is perhaps hitting apache more than it needs to?
Check your apache log and see WHAT files are being requested, what is the referrer, etc. That will give you more ideas on what to check/look for. You might want to disable FOP1 for example, FreePBX has a check for it and if you go with fop2 you do not need fop1 nor the freepbx checks anymore.
Best regards,