I assume these 3 games support NTSC (if you're playing them on an NTSC Amiga). Normally, the early boot screen supports degrading options (primarily: chipset), and normally, the relevant caches are off until the accelerator software or CPU command is run. Your rig is more compatible with games written for A500 or A1200 if they're off. Maybe the CyberStorm is different, but I don't think so.
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