Since the Render Dragon was rehabilitated, both the rendering of the world and the entities respond very slowly, causing a great slowdown in gameplay in general.
Related issues
duplicates
Comments
[Mod] LateLag
MCPE-104569
Serious problems with the Render Dragon, causing slowness in the world
Resolved
Duplicate
0
[Mod] LateLag
migrated
(Unassigned)
Unconfirmed
Android
6.1.0
1.16.200.52 Beta
Retrieved
Hello, Render Dragon isn't actually enabled on phones yet. 😛
As for the general lag issues in single player worlds that started in 1.16.200, we're using MCPE-120971. Feel free to add a comment there if you have any additional info you'd like to add.