V3 Terrain is too flat

I cannot find anywhere else to mention this, so this will have to do. I do not know if this is a "bug", but help on the matter would be appreciated. I've been using Tectonic v2 for some time now in other modpacks, and it has been a reliable mainstay. However, v3's terrain simply looks... uncanny. The areas around mountains look fine, but where there are no mountains, the terrain is disturbingly flat. This makes no sense, since v3 was reported as making the world less flat, however, v3's flatness at times makes me feel like I'm playing on a superflat world with only minor deviations in terrain elevation. Beyond this being a general complaint, I'd also like to ask for help in finding settings to make the terrain less oppressively flat. I determined that Ultrasmooth was off, but beyond that I am unsure what would help. I am positive this issue is isolated to Tectonic, because it is present when Tectonic is used alone.