According to the readME D24FS8 is not supposed to work most of the time...readME said:"Z Buffer Mode" sets the used depth handling mode. Recommended setting: D24FS8. Note that D24FS8 is not supported by
most video cards. The emulator will drop back to D24S8+FPE in that case which can be a bit slow for old systems. It's
the second most accurate option however.