Cars Weird blur in passenger side window. How do I fix?

[pedrocaseiro95]

Hello guys. I'm having this weird blur and really strong glare in the passenger side window of Shokeus MG Metro 6R4.
Whenever I'm stopped there's this really strong and white glare and as soon as I start moving the windows get this weird motion blur thing.

How do I fix?
I've tried everything I came across so far and still nothing