You can't get the Preview for Developer updates without putting your device on the P4D program.
And the P4D software is not optimized for your device (or any device actually - it's a "generic"). Users report more Bugs, not fewer as a general rule, including but not limited to battery drain issues and WiFi connectivity difficulties.
Rather than looking to P4D to solve issues have you tried:
- Soft Reset
- Hard Reset
- Reading in the 830 forum for fixes
- Posting in the 830 forum for help with an issue not addressed yet
Go ahead and get on the Preview for Developers if you like, just understand it most likely will not be a panacea to fix glitches.