FPS Changeable

[Dragon1220]

Hi Guys,
Recently, I get new PC( i5-3690k 8G GTX770). But I get trouble now. when I was in the pit the FPS is 40-50. but once I switch to the Desktop and back to the game. The fps is back to 70+. And in the same TE when I use window not the full screen. the FPS also is 40-50. So what is problem?
Thanks Guys

[Arty]

and the problem is?
in window mode fps are less in general. and it’s obvious.
Also switching from 3d to desktop and back well it’s a nice GPU job that costs a bit mostly cause of the OS drivers and the whole deal going buzinca.

So avoid those and u will be just fine.