FPS Drop in Fullscreen vs Windowed

Moth27

Member
I recently discovered an FPS drop when I run my project in Full Screen. Both Windowed and Full Screen are the same resolution for this test.

Full screen = average 200fps (960 x 540)
Windowed = average 800fps (960 x 540)

I've searched the forums but no luck. Why is there a 600FPS spike? Any ideas on why this is?
Thanks
 

Nocturne

Friendly Tyrant
Forum Staff
Admin
Every time I've seen this issue reported (for ANY game, not just GameMaker games) it's related to a Windows 10 feature called "Fullscreen Optimisation". This is a feature that's supposed to make games in fullscreen run better, but in reality all I've seen it do is either nothing, or cause problems. The sad thing is that this USED to be an option you could disable from the settings but recent Windows updates removed that and you need to do a registry change. Here's a link with more information: https://digicruncher.com/disable-fullscreen-optimizations-in-windows-10/ (and do a search for "Fullscreen FPS Drop" to see just how common this issue is!)
 
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Moth27

Member
Every time I've seen this issue reported (for ANY game, not just GameMaker games) it's related to a Windows 10 feature called "Fullscreen Optimisation". This is a feature that's supposed to make games in fullscreen run better, but in reality all I've seen it do is either nothing, or cause problems. The sad thing is that this USED to be an option you could disable from the settings but recent Windows updates removed that and you need to do a registry change. Here's a link with more information: https://digicruncher.com/disable-fullscreen-optimizations-in-windows-10/ (and do a search for "Fullscreen FPS Drop" to see just how common this issue is!)
The link you sent fixed the issue, thanks so much!
That seems like a dumb feature of Windows 10.
 
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