Hello there,once i had older versions B27 and such,the game ran like butter,i was recieving over 200/300 FPS,with any mod,now i have Version 1.05 i believe,and upon spawning ANY second actor the game goes COMPLETELY slowmotion,its quite much under 20 FPS and stay like it,while i destroy enemy brain,the game jumps to massive FPS (350+) but the scene stays completely same

The game ran with same PC perfectly,now it doesnt,none changes has been done,i have tried overclocking most of components,underclocking,setting bios to default settings,experimenting with software,nothing helped,still same
Specs:
Intel Dual Core 3.33 Ghz
Nvidia Geforce 9800 GTX+1 GB
2,5 GB 1000 Mhz DDR2 Ram
500 GB HDD

Pc can run pretty much well Battlefield 3 and even Arma 3 On medium/High with 40+ FPS,and im not having any performance issues with any other application
thank you for help

Check the console for Lua error spam, that might be causing it.