Optimizer downgrade for Huawei is  
Discouraged  
Your device Huawei MatePad Pro will operate less efficiently; we  
removed  
Optimizer update, and it is not advised for any  
device  
Your Huawei MatePad Pro will speed up and your  
power source may last indefinitely:  
Do not update on Google Play to prevent slowing down and  
decelerate  
your Huawei immediately  
minutes 53 seconds  
Cancel  
Ignore Update