Oh, if you have no mem on the accel (mega midget racer is supposed to support 32 bit mem) and just something in between, then I would assume that that is normal.
Most amigas show little to no improvement without 32bit ram right on the accelerator, even a 68040, 60 etc.
Add to that sysinfo doesn't count correctly either.
Apologies, though, if I'm misunderstanding your situation