Did the PE1 update fix the High Android System usage? Is it safe to update with root?

I rooted my phone with the correct methods as in the threads below mine, and I purposely havent updated my phone for a while, just in case the root would only work for older system versions.

I'm just curious to know if, now that I'm rooted, is it safe to update to PE1, and will it fix the Android System battery drain? I've also downloaded all the root fixes too, as well as the Debloat, so my original System Updates app doesn't work anymore.

I would love to get just some answers from the pros on this before possibly bricking or boot looping my amazing phone. :)

Thanks!