the update they made to cut down on lag issues when someone does heavy terrain modifications has been extremely improved

I have a ten year old system. It's a noticeable difference in areas where I've done heavy terraforming, but it's not unplayable. It drops from my normal 40-60 to around 30 with some heavy (but very brief) dips below 20.

The real fun starts if I go from an area where the terraforming hasn't loaded in yet to the area it's in. Once I'm in the area (either having been there or teleporting in), it's fine, but it's *really* bad when I'm approaching the area and it's hitting the LoD threshold. Then it drops to basically commodore 64 loading.

It is better than it used to be but there are limits... probably always will be.

They added in a console command .. something like opterrain, or close to that ,to have it do older worlds. That did mess with some builds though, like burying things etc.

Better to just start a new world to check.