Forums » Help » Weird FPS issue

All I have is a background map. Nothing else.

If I open the game on firefox it runs at 50 fps (set to 60)
If I open the game on chrome it runs at 60 fps (set to 60)
If I open the game in Firefox and then Chrome they both run at 60 fps, but then if I close chrome it goes back to 50 on firefox.

i7 2600k @ 4.5ghz
8gb ram
Win 7 64 Bit
Two GTX 580s

So it should be running at 60 fps no issues all around

Also, if I move the mouse around in Firefox it will jump up to 60 fps and then when I stop it goes back down to 50... hmm

set to 60
How did you set it to 60 and for what version of impact? 1.20 changed the way fps is set. See docs here and note how fps is ignored in 1.20.

1.2 ok didn't see that, but still doesn't explain why opening chrome would make it 60 fps. Is this some sort of Firefox bug? Just wondering if other people are seeing this problem.

I've skipped the performance-related posts thus far. Plenty of talk on FF vs. Chrome and Safari etc on these forums. Do a search. My guess is if that this shouldn't matter in most cases and, in the few where it does (e.g., time-critical network games), solutions exist.

Right it's still just a weird issue and mainly wondering if other people are seeing this. I'll just recommend chrome for now.

@tenix - I have been experiencing exactly the same thing. This is one of the weirdest issues I have ever seen. Eratic FPS from FireFix (fluctuating randomly between 50 and 70(!?)). I start the app in Chrome alongside FF, and suddently FF smoothes out to a steady 60FPS. What's even weirder is that the same app must be running in Chrome, it's not enough that chrome is just open. I have no idea what's going on here! Did you find out anything?

@Alexandre - this isn't just a comparative FF/Chrome performance issue - there is some strange interaction going on.


Versions : Chrome 22.0.1229.94 m FireFox 16.02 , Windows 7 Pro x64