Oh wow. Well, if an i7 8700k with a 1080ti 16gb 3200mhz RAM and 300/300Mb/s FIOS connection is not able to go beyond 45fps, i dont see what else is needed then. It can hardly get any better than your specs, including the internet connection.
I have tried to tweak a lot of things but i still get horrible stutters when I fly in OPEN and there are other players around. Does not matter if i fly in Supercruise or Normal Space. It gets especially bad in RES sites.
I rolled back my Nvidia driver to 388.59.
I disabled fast start for my WIN10.
I deinstalled gforce experience and other bloat ware.
I activated port forwarding on 5100.
I monitored my bandwidth which was never at the limit.
After playing I checked the network info in the main menu: My ping is >350ms! When i benchmark my internet connection i get <50ms! Is this normal?
Without players and low SS I'm mostly 98% 90fps even in resource sites, it all just plumps down to spacewarp when other players join, and then mostly just in RES sites, or planet settlements.
It's a sad fact that the game simply is old now. We need them to start seriously thinking of updating the engine from scratch, especially the multiplayer elements.
That is the only thing that would help performance further, or they simply intend to wait for another two generations of GPU's, that might do it.
Ping times vary with where you are in relation to server, I'm sure you know that.
I get <1ms pings to my ISP, but if I where to ping a server in Tokyo it could be nearly a full second.
