Tested versions

4.3, 4.2, 4.1, 4.0

System information

android j2prime android j7 (or any 2016~ phone) godot 4.3 dev3

Issue description

+proceduralsky is really slow on android (20-30fps) on an empty scene
+when world environment sky is set to color or panorama the framerate is 60+

Steps to reproduce

+create empty godot project (gl_compatibility)
+add environment
+add proceduralsky
+export to android with remote debug enabled
+fps ~30
+now remove sky
+fps 60+

Minimal reproduction project (MRP)

N/A