For me it's a lot slower. I actually have a vid of someone playing KQ1 on a PCJR. In the vid, it takes about 48 seconds to go from the Sierra Online/IBM splash screen to the 1st player screen where you're in front of the castle. When I run it through MESS, it took about 1 minute 58 seconds to do the same thing. Same with going from one screen to another. It takes more than twice as long as I noticed it taking in the vid.