I've tested your game : slow in a simple PC without real 3D hardware : and it's 2D

i've tested other 2D games that runs really fast ; i think Cscript is slow and 3DGS better suited for 3D.

try that : i think you'll quickly forget your very poor 2D game
http://www.arcticgeckostudios.com/pedro/?section=projects

-tap twice forward to acceleration
-keep shoot key to charge a shot

amazing animations and combination of torso, legs animations,
gret level graphics and character.

try to find the acqueduct sub level you'll find water and cool animation when you fall on it

you can see the hair of character is animated with simle physics maths but the result is just great

Another game that proove that 2D can be marvellous compared to lot of
awfull 3D things made by programmers