So My title scroll is coming from AE as a mov file( rate 23.97) and for some reason it still feels like it's flickering a bit as it moves up screen. Any ideas on what I could do besides trying different speeds?
Does it match your timeline rate exactly? How are you monitoring? Just the computer screen or an external monitor via a Decklink card? Progressive credit rolls are difficult and there are formulas for the speed per frame rate to get best results.
Like Michael said, things flicker, especially at lower frame rates like 23.98, if the scroll is moving too fast. This applies to text, graphics, and live action elements. With live action, usually an optical motion blur is inherent, but if you have high shutter speed live action, it will do the same thing.
Probably not possible, but increasing the frame rate of the scroll and your timeline to 60 would probably fix it.