Hi all. First time poster so please bear with me.

We have recently bought a MY15 Multivan Highline with I assume a RNS510.

When the car is started, sometime the screen 'glitches' and the VW logo is cut in half. This lasts 10-30 seconds.
Other times, the unit restarts several times before finally turning on.
It also takes several seconds for the reverse camera to show when you put the van in reverse.
Lastly, it takes an absurdly long time to connect to Bluetooth when you start the van.

So, I guess I have a few questions.
1. Is this all normal?
2. What are my upgrade options? ( Ive found MIB2 on google as an option I think?)
3. Regarding upgrade options, I still want to keep proximity sensors, the reversing lines that move when you turn steering wheel, and steering wheel / hands free controls.

Thankyou in advance!