dont use an OGL plugin. you can read through
this thread to see if there are any suggestions that might work for you but otherwise avoid using them because im not sure if there has been a definite fix for the issue yet. can you post the settings you were using for the d3d plugin? with CC, its best to use 1.5.2 with the "odd/even bit hack" game fix enabled. the -noauto command switch is only used with 1.6.0 but the game can still be unstable with that version.
for the speed issue, make sure epsxe is being used by only one of your cpu cores. this can be done by going into the task manager, right clicking epsxe.exe under the "processes" tab, and then going to "set affinity" in the right click menu.