How bout we see if this is a problem we can solve
Blue66, if you can try to answer these questions im sure it will make it so much easier for people to help you solve or identify your problem
Your making a Platformer Game correct?
What is the target platform for the game?
Is the whole game in 1 Frame, or is the game divided amonst multiple Frames/ Levels?
Whats the size of the visible game Frame ( 640x480 etc )?
In general, are your game Objects composed of 1 or more Active Objects ( example: seperate Actives for arms, legs etc )?
Does the games scroll?
Is there potentially alot of Collisions occuring at the same time, aprox how many?
Are you changing the Scaling or Angle of Objects alot?
Aprox how many Events is there in the Game?
Are you deactivating Groups Of Events when they are not needed?
To what extent are you using Fast Loops/ For Each Loops?
What are the generall dimencions of your game Objects?
Are there any game Objects that are particularily large?
Is the detail level of your Objects/ Background Textures high?
Are you using large and detailed Backdrop Objects?
Are you using any special effects: