I had problems with some games with my mac performa 6116 (speed at 60 mhz). Monkey island 1,2, indiana jones fate of atlantis were a little slow. Gabriel Knight, Police Quest 4 and King's Quest 7 were very slow. I realized that because these games made for 68k code there was a speed problem with the powerpc machines (at least the early ones). For instance Indiana jones fate of atlantis cd version has two files/versions. One regular and one for ppc. The regular version runs slow on my performa 6116 and the ppc runs great. That's why i bought and installed a sonnet nubus g3 at 500 mhz. The difference is huge. All the above games that i mentioned before run great. Yesterday i played police quest 4 using roland mt-32 music. Great experience