Okay, I think I might have something useful for you. Here's the emulator settings I was using:
Emulator: WinUAX
CPU: 68000
CPU Speed: Real
CPU Compatible: No
Cycle Exact: No
Video Chipset: Agnus
Video Mode: PAL 50Hz
Chipmem Size: 512k
Fastmem Size: 0k
Slowmem Size: 512k
Fast Copper: Yes
Immediate Blits: No
Collision Level: Sprites and Playfield
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When [CPU Compatible] is switched on, it seems to run perfectly. No graphics glitches at all. Toggling the other settings didn't seem to make a difference; only the CPU Compatible switch seemed to help.