Problem with typing speed on Android

Our App in Ionic 3 works well on IOS and also on some android phones, But on Many android phones, we are facing problem of keyboard typing lag and also of date and Time Scrolling lag. because of which it is becoming very difficult to use. Tried to find solution for this but have not been able to get resolution

At first every web apps has less performance than native, especially at old and low-price devices.
If this behavior stay the same at flagman phone try profiling, maybe there a endless cycle or something.

Hi This seems to be the problem with some androids but not been able to nail it to Low resources or some brand of phones etc… If it was code related, the should it not happen on all phones as well as IOS also…