i own a Misfit Vapor 2 and my girlfriend haves an Fossil Q Venture HR Gen 4 Watch.
We have them now for 3 weeks and the OS was very slow to use. I've been looking for optimizations in many forums, but I've never found anything right, so i tryed to deactivate various system apps.
I summarize everything:
1. Speed up animations in developer options
-> Go to Settings - System - Info and tap 7 times on build-number
-> Go to Settings - Developer options and set all animations to 0,5
2. Uninstall unwanted apps:
-> Go to Settings - Apps & Notifications - App-Info and uninstall all unwanted apps
3. Deactivate system-apps:
-> Go to Settings - Apps & Notifications - App-Info - System-Apps and deactivate following apps:
(my watches are german, so i have german app names, i try to translate them)
- Analoge Elemete (English: Analog Elements?) - this is a google watchface. If you don't use them, deactivate it
- Anleitung zu Handgelenksbewegungen[ (English: Instructions for wrist movements?) - I Don't need to see again the instructions, so deativate it.
- com.Fossil.Charge.Ray / com.Fossil.Charge.FireFish - The unnecessary charge screen. When you charge now your watch, you see your watchface. Deactivate it
- Digitale Elemete (English: Digital Elements?) - this is a google watchface. If you don't use them, deactivate it
- E-label - This are the regulatory information for the watch in System - regulatory information. Don't need to see them, so deactivate it
- Fossil/Misfit - The built in Fossil/Misfit watchfaces. I have a watchface from play store, so i deactivated it. Important: On every reboot this app is activated again.
- ServiceTool - I don't know was this is, i think it is a Service Tool for the manufacturer. So deactivate it.
- Übersetzer (English: Translator?) - If you don't need a translator on your watch, deactivate it
4. I found out when you deactivate Zum aktivieren neigen (English: tend to activate?) in Settings - Movement, the watch runs also smoother.
5. Deactivate in Allgemein (English: General?) - Mediensteuerelemente automatisch starten (English: Start media controls automatically)
With this settings our watches runs a lot smoother than stock. Also the battery life is longer.
I hope i could help you with these attitudes and that the translations are correct.