Help for Razer Phone 2

As usual these are the standard android issues, wondering if anyone has a fix. Coming from generations of iPhones so I'm not that familiar with android. In fact the only reason I'm using android is because of the Razer Phone 2.

Software

1. Unable to connect to my razer blade's hotspot.
- My 2 iPhones can be connected but not my RP2. The network is saved but it won't connect.

2. Camera app hanging.
- When I open the camera on the RP2, it defaults to the camera. But if I swipe left or right to get to the portrait or video mode, the app freezes and crashes.

3. OS lag.
- With my older iPhones all I had to do was swipe close apps to really close them. I have never had the need to turn off / restart my phone to "reset" it. But with android I have to restart my RP2 every 2-3 days to keep it in optimal condition. Does closing apps in mutitasking really close them? Or do I have to go into settings to force stop the app every single time?
- The play store is full of fake apps, does anyone know of any good phone "cleaners"? Like clearing cache, freeing RAM etc.

Hardware

1. Dust / dirt in speakers.
- Anyone figure out a way to clean them yet?

2. Grainy max volume
- The speakers feel grainy and forced if set to max volume. Is this intended?


Thank you.