When did you download the game? I believe the videos should no longer lag in any way and also that's why it says "preview version", it's not a game yet, the reason of release is that i need feedback and suggestions, last devlog I posted shows how changed and improved the characters are getting, I have redone everything like 4 times now because of the changes I have done, if you want to get more info on this I always post on discord server regarding the status of the game