Best Settings for Plex - Remote Server?

What’s the best settings for using Infuse (Pro) with a remote Plex server?

I use a remote server as it has a 1Gbit up/down and is easier for me to stream to my devices.

The issue is, my library is huge. When I install infuse it takes ages for it to pull my library and then fetch details.

Plex has all my metadata and I have no care to redownload metadata on my iPhone/iPad.

It takes ages to fetch data and then crashes

And any way for it sync across my devices. My iPad and iPhone without starting from scratch.

What’s the best settings I can use?