I use a .sh script also that launches my games .exe and the games i have are
Raptor: call of the shadows
Heroes of might and magic 2
Which seem to be running at high performance. A game i noticed very slow game play was star wars dark forces, but with some minor edits with in the game settings it worked out fine.
I tried to get duke nukem 3d to work but it didn’t seem to for me. I’m having problems with configuring eduke32, so i figured id give dosbox a try with it lol.