> Specific examples?
Donkey Kong and Chef, the only 2 I have.
> Added Artwork?
I'm using the same artwork since forever, even before the slowdown started.
> Checked different video modes?
Nope, same video mode as before.
> Enabled HLSL/GLSL Shaders?
> Problems with other machines?
> Hardware details?
Lenovo notebook with radeon r5 graphics and 8gb ram. Nothing fancy but it's good enough.
> Considering you said it was sudden and affects multiple G+W games, I'd suggest a
> setting is causing it somewhere.
Which setting could be affecting it?