Best performance for mp4 import to Unreal Engine

I’m making the cinematics animations in the other software. The video is 1920x1080 60fbs. I want to import them to Unreal. I see that format mp4 h.264 is supported by engine. What would be the best render settings for this mp4? I mean how much bitrate I would need to keep the best quality of the video without any bad effect for the whole game.