How to change buffer size in the new Plex for Windows?

So I used to edit plexmediaplayer.conf on the old Plex Media Player to make it the size I wanted. I need to make my buffer a bit bigger so even if I have to wait a bit more at the start, the connection is more stable. Specially when dealing with huge files.

I can’t find a setting on the Plex folder nor the Windows Registry.

Thank you!

That app doesn’t have that option.