M51 Recent Issues

[Bhagavathi]

M51 is performing daily tasks well from last update.

But now I started to face some issues like

1. Slow Network in my mobile, other devices with same network are faster.

2. Youtube can't load video, everytime I need to switch on Airplane mode for seeing a video 

3. Some apps are Automatically closing while using it

Any solution for this or will it be fixed with update 

[M51B]

M51 user request to you give 5g network updates in this device