Help!! drop frame rate of Source Code

[TAMAOI]

I do not understand is run source code and sing in Left4Dead chose DIY Rift but frame rate drop down to the 4-5, I should be edit what file?? and edit where function ??

sorry I'm not good at English

[cybereality]

You may need to enable Aero (desktop composition) in Windows.

[TAMAOI]

I enable Aero but frame rate drop to 5-6

[DrBeef]

for the game_type.. is it something like game_type="200" or game_type="10200"?

With the 10 appended to the front, it runs in shader analyser mode and currently this is sub-optimal, and can cause a dramatic effect on FPS.