If you are speaking of the MPE in PPro, then I would imagine the Titan anything is overkill. Get something far less pricey and just add it to your card list in the PPro files (very simple to do).
I am wondering exactly what is up with the sequence. They come out weird? They process too slow? MPE is really for certain effects and filters more than anything, and while a good CPU won't match MPE through GPU, it should suffice in most instances.
What version of PPro are you using? Do you have AE sequences in PPro?