The VinLand modpack aims to only improve on features and concepts in the vanilla game. Exploration is one of the focuses of this project, thanks to Terealith, there are new biomes to find, but nothing too crazy as to take you out of the experience. Tech was another thing that was expanded on with the Create mod and some addon mods for it, this gives you the chance to build cool contraptions while looking like it's from a future update. Lastly, optimization: there are plenty of mods that improve performance so everyone can have a fun time.
P.S. There is some more stuff that I didn't mention, so have fun figuring out what they are.