efficiency of nvcloth on Andorid

[Vovery]

I have test a same example both on IOS and Android
IOS(IPhone 7) : run 10000 points cloth simulation still can get 30 fps
Android(Goole Pixel 2XL) : run a simple flag without skinning abount 600 simulation point seem to be very slow, the fps is 50 when cloth is off and the fps is 6 when enable cloth simulation
I had checked the android lib compile, the neon is enabled and the compile use - O2 option
Is that situation normal？
It seems that nvcloth on andorid is very slowly....