From the MEGA65 Description:
People have been talking about the boot time of TheC64 MAXI a bit lately. So we decided to do a quick comparison with the MEGA65. We already knew the MEGA65 would be much faster, which it is, but TheC64 MAXI does a pretty good job for emulation, and is of course designed to be much cheaper. It’s just great that there are so many cool 8-bit hardware projects at the moment!