so I currently have a X910bt I am sick of waiting forever to start up/load,  what would be a good pioneer replacement for it that wont cause to much rewiring etc. trying to just do a swap so to say to something faster  thanks

None of the newer (modern) head units are plug compatible with the old X910-BT. So whatever unit or brand you decide to buy, you will need to splice in to the car's wiring or find a conversion harness (depends on how the X910 was wired). There is no plug-n-play upgrade solution.  

I recently wanted to modernize my car which had a Z110-BT (with the latest available Pioneer maps/firmware). I wanted Carplay/Android auto support. After pricing Pioneer and other major brands I decided they were not worth it when I could buy a $200 unit on Amazon from a brand I'd never heard before (Atoto). So far I'm very pleased - sounds better and has a ton of features. Since it runs Android, I can customize it and install apps off Google Play store.