RikTelner 20 Posting Pro in Training

So, my laptop has exploded^.
I have older laptop which I want to use to play games, it's old as "2012 end of the World theory".
I recently had bought a game which I want play pretty badly. I can't wait for repairing of my
newer laptop (for some reasons). I also can't upgrade older laptop, because that would have no sense.

When I start the game, mouse lags pretty badly.

I've decreased game resolution, I've declined "Appearance" and gone for "Performance" in Windows settings
I am using IObit GameBooster (which actually works, unless I am dumb enough to be tricked).

When I restarted the game, it was playable though there little lag which can actually mean
a lot in this game.

So I was thinking if there program, that could force another program to run in 16-bit mode.
Or force it to specific resolution. Something that could actually increase performance.

^ - It hasn't.