Ios10.3.1 iphone7plus , using touch event will cause web lag

Help & Support
1

https://playcanv.as/p/mwFaEP3e/ i don’t do anything in touchstart,but when i touch the screen,fps decreases.Anybody
know why

2

Can you share the project please?

3

https://playcanvas.com/editor/project/419227

4

i know what makes it.it’s caused by touch default event.