Movies play top, rest flop

I use the Live Hub for some time now.
That for which he is actually making it really top. Movies are very well reproduced without any problems.
The hardware itself and the quality is fine!

However, there are also negative points.
- The menu is just too slow.
- Youtube just does not make fun. Everything is so slow! The search is tedious and per Handyapp. It may also happen that when using Youtube the box completely crashes and tries to restart in a bootloop. Since it only helps to remove the power plug.

The same problem with Youtube is also evident in the normal WD media players.