That is the reason I started qlay3.Needless to say, it's about 16 years since the emulator was last updated, so perhaps not surprising it doesn't work too well on modern systems. And QLay and QLay 2 are a little older.
MDV (a tiny part now as I rewrote it almost completely) and IPC code is based on qlay2 (because its GPL). Otherwise everything else is all new!