Today, I installed Findude's Gun pack and for some reason the game began to run at like 10 fps. I removed the mod and it still ran slow. I had nothing open at the time and opened Activity Monitor and nothing was sucking my memory. I uninstalled the mod and it still ran slow. I had to reinstall the game to fix it. I only had Bunker Modules 2X and FD'S Guns in my mods folder at the time.

Did you at any time restart your computer between uninstalling and reinstalling?
Your memory may have gotten filled up for some reason without being cleared correctly.

Nope. Did not restart my Mac between that time.

SO i tried installing FD's Guns again to see if it was something else or his mod pack.

My computer froze and I had to unplug it when I tried to fire the Fatman Missile. D:

He means that you should try restarting when you lag... I think he's probably right.

in any case, go to your resources/base.rte/settings.ini and raise the variable called "detatime" by .005 intervals, and stop when CC stops lagging.