Slow AGA in 128/256/HAM8? Use FBlit and FText. Makes a HUGE difference on my setup. Even on double scan screen modes the 256 colour screens are quite fast comparatively. On PAL screens 256 colour mode is really really fast. I'd think any Amiga > 68020 25MHz would begin to benefit at a guess, but I've only ever used it on an 060. There's FScreen as well which takes it even further, but I know little about it and I heard it causes problems (this was about 10 years ago I looked into that).
