Startup movies frame drop/lag

I’ve added a startup movie of unreal engine logo in my project but whenever I launch the game, the movie lags alot. The video is in 4k and I have tried adding 1080p videos but unreal engine seems to be ignoring 1080p movies for some reason (yes they were rendered in h.246 codec/.mp4 format) but when I rendered it in 4k, it started working but has a frame drop while playing those movies.

Same here :frowning: 4K videos, i will try 1080p, but 720p is UNACCEPTABLE in 2017, really