Game Is So Laggy

U can see in a video, me and my friends playing multiplayer mode while in creative mode, Not my internet problem and my phone, it's game itself is really really laggy 

 

Link (video) : https://drive.google.com/file/d/126_Gr7VLIsL7GaqBdRsbHTuF95SU5wbw/view?usp=drivesdk