Hi, on my Compaq CQ50-130US running Windows 7 Public Beta Build 7000, I ran FPS Creator perfectly fine, I noticed absolutely no speed problems, except when playing the game, obviously the FPS was about 15-20, because of my poor graphics card, but recently, and I have not changed ANYTHING, FPS Creator started running INCREDIBLY SLOW. Nothing else on my computer has been acting sluggish lately, but the editor is running at about half a frame per second (i.e. it takes about 2 seconds for the render thing to move) I do not currently have FPS Creator installed on my Vista install on the same computer, but I will probably get that installed and see if it has something to do with Windows 7 possibly.
I have checked in task manager and the CPU and RAM usage have been fine, so I'm thinking there is something wrong with my graphics. I have not tried playing any games since the problem started happening, but I will probably try that out very soon here as soon as I install Guild Wars on here.
EDIT: I'm using the most recent version (1.13 I think?)