I only have SED open, and It wasn't dropping in FPS before I had the dragging window function. I even tried removing my inkey function; no luck.

And I can't run my script from WED; I still have the A6 WED, but I have the free Lite-C SED.

Maybe it should be int main()? I'm really lost here.

Maybe it helps for debugging to separate the inkey loop (it is a loop internally that waits for inputs) from your dragging loop.
Do one thing after the other, if you can afford that.
Something like

inkey(type_string);
while (type_string == NULL){wait(1);}
//programm reaches this point only after inkey has ended
while(1)
{
mouse_pos.x= mouse_cursor.x;
mouse_pos.y= mouse_cursor.y;
wait(1);
}

This should at least give you some information, whether your framerate still drops (if so, it is not because of interference of inkey and dragging).

But I've gotten rid of the dragging loop (I couldn't get it to work by taking a parameter). I also tried removing inkey();. It's still running at 40 FPS.

I dont think that your loops or inkey or whatever can reduce your frame rate but maybe you have a "fps_max" setting somewhere in your script?

Nope, no fps_max.

Hey, I just figured it out! It's because I was using a TTF font for my inkey line.

I don't know why it makes things so slow, but that's what was causing the FPS drop.

anyone know why Lite-C has such trouble with TTFs?

It really sucks to have to use the few and cruddy bmap fonts that I have (I've used TTFs so many times before with C-Script, so why bother with looking for bmaps?). Does anyone have/know of any good bitmap fonts anywhere? Unfortunately, I can't pay ca$h, so I'm looking for free ones.

Also, I want to be able to change the color. Can anyone tell me if there's a way to do this with bmap fonts? (red/green/blue= n doesn't work)