just a hunch…
have you tried forcing the landscape to always use the highest quality LOD? (i.e. force it to never use LOD)
yes it will cause even more bad performance on its own, but I’m still interested in the comparison. I just want to know if the tessellation slowdown is related to LOD or if it’s something separate
I have my own problems with tessellation. basically Tessellation+Foliage+LOD is broken and they don’t even want to acknowledge it as an because there’s some exotic workaround.
I want to know if it’s related (unifying several problems as one = more people affected by the same problem = higher of it getting fixed)