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Completed my first game of arcnaum, and i thought hey i'll do the UAP

Moment i install it 00s era arcanum slow down is back (guessing GOG makes fixes to this that the UAP overriddes)

How do i have my cake and eat it?
Install Arcanum High Resolution Patch Version 1.5 too
and try setting the renderer to software and using this wrapper: http://bitpatch.com/downloads/ie-ddrawfix.zip