Assuming they're using 68k emulation, this is what happens on MOS too. 68k CPU use tests are worthless under integrated 68k emulation. Although I'm not a coder and can't tell you why
The following is a complete guess as im no emulation expert, so feel free to correct me. My guess is that the underlying OS only gives the emulated 68k process as much cycles as needed and nothing extra, hence its always using 100% of its perceived available CPU power.
