Few years ago I tested few versions of ASp for Ian on my A1200 with Blizzard 1230/50 Mhz. All of them were versions newer that 0.80 and I remember that emulation of 48k games was OK (speed of real Spectrum). 128k games with a lot of AY sounds slowed emulation down.
My opinion is: you can use ASp with 68030/50 Mhz Amiga but only for 48k games.
BTW: BlazeWCP gives ASp some speed.