Memory cost of FlipBooks going insanely high? Making animated Title Screen etc

Yeah. What I tried to do seemed rather simple and basic, -it was just animated text on top of normal 3D map, but simplest things in game development are often not the wisest. I cant make the TITLE APPEARS ON THE screen animation the way I wanted, but rest of the game matters more anyway. Now Im making a simple plane with a rig, on which I have the title as a texture. Looks 2D and I can give it complex animations too. Its hard to give it that flat loot since its affected by post processing pipeline, but ill find a way to make it good enough.

I am using media files for studio logos and perhaps something else too, so any recommendations for movie file types? I have the Adobe Encoder.