Im not 100% about CT (it not being released yet obviously), but I'm pretty sure just the fact that the PSone titles aren't read from discs helps load times. Sony does go in and alter things though, they've had posts about that process before so they might do it. When a third party publisher re-releases a PSone title it's really in their ballpark when it comes to what they want to do with it. RE 1-3 seem to run better, although I played them as kid on my PS1 so I might not be the best person to ask. FFVII ran pretty smooth as well. The PSone Japan Imports are pretty bad though.