[Feature Request] Implement ad widgets without native views

Hey,
It may be a silly question but is there a reason this package uses native views (which are expensive and have a lot of performance issues) instead of actually using flutter widgets?

This package currently is unusable in terms of lags and crashes.
Implementing ads as widgets instead of native views will solve all those issues.

There are plenty of other ad packages (for example https://pub.dev/packages/native_admob_flutter) which also uses native views and have the exact same performance issues.

Maybe I'm missing something and it is impossible to do..
just thought it is worth suggesting.

Hope you will consider this as this will differentiate this package from others and also bring Flutter as a framework to a higher level.

Thanks