Version 1.1.8.2 has been reported to cause huge performance issues, hopefully 1.1.8.2 revision 2 has been just released fixing this performance issue.
If you had downloaded version 1.1.8.2 and had this performance issues please redownload it.
I'm really sorry for this incovinience.
P.S. : I also fixed the HOM glitch in classic doom games.
