I readed in chuwi hi10 forum that with bios modified. They could to install windows 64 bits .
I think that chuwi hi8 pro with bios efi 32 bits with a modified bios and drivers maybe run windows 64 bits
I tried dolphin emulator and ps2 emulator and run a little faster in a chuwi hi8 tablet of a personal friend.
Chuwi hi8 wii mario kart 20/22 fps
Chuwi hi8 pro 18/19 fps
Dolphin run more better with dx12 but dx12 only in dolphin 64bit .
I wait for a modified bios for to install windows 10 home/profesional 64bits.