Video quality on solo2+timeshift

Hello there

Im using openpli4 on my solo2 and i noticed that when watching a movie on the pc is much clearer and crisper than watching it using media player on solo

The 2 devices are connected to the same screen (FHD sony 55")

I cahnged the settings and resolution but still same bad quality
Any one knows why?

The second thing is how to use timeshift?
Before when i press pause button it starts timeshift now nothing happens

Thanks