The 45k limit is there because that's the maximum amount of stuff the game allows you to have. Restart the game and re-inject and only unlock the Cold War items and you should be good to go unless there's actually something wrong with it ig, I used it just a few days ago with no issues.
Barely any fps drop but as with any cheat you will lose some performance, for me it's not bad, I lose about 20-30fps at most. It largely depends on what setup you're running too, with what you have there shouldn't be any major fps drop.
Not only are you guys primarily focused on working with those projects but those projects turned out to be like everything else here at iwebz, the best premium cheats out there. I'm glad I put my money here as always :D