Draco1962

I am sure it is a fine system, however, Win 7 X64 has been out for retail since 10/2009. Did you do an upgrade to Win 7 x64 from XP/Vista or complete install due to an x386 version of one of these installed prior? In either case, there may still be some 32-bit drivers or the like that may be contributing to the slow exit as & switches back and forth processing data between 64-bit native and 32-bit emulated modes. Of course, I could be totally wrong... it happens!

I am not sure how well GameEx works with multi-core or x64 systems although I am sure Tom has tested it thoroughly on them. One thing you may want to try is running GameEx dedicated to one CPU core. If you google it there are quite a few links on the subject, and probably a program to do so. Otherwise, you can open task manager and select GameEx in the Processes tab, right click and then select "Set Affinity" and choose the core you wish to dedicate to it. I have found this to be useful on a few older programs and emus that do not play well with multiple cores.