lIaM'sl

Recently my DotA started to lagg badly.I had 50-70 fps before , now I get like 30 max and mostly it's 10-20.Sometimes it works fine for few minutes but my fps drops again everytime when creeps start to spawn. Can some1 help me ? Searched all over the internet , mostly ppl write to buy new graphic card but I don't think my graphic card is problem coz my fps is still good on other games . Plz some help

only thing I could think is changing the graphics options in game, maybe deflating the detail the game tries to run through it?

Tried , did all on low and still lagging >:

mhmm damn... I'll keep thinking and trying things, hopefully find a solution!