It's a fact that current-gen VR can get blurry. Depending on what you're trying to focus on and from what angle, text can be a pain in the ass to read. In a game like Skyrim, which is filled to the brim with signs and books (not to mention the in-game map you use all the time), that's a bit of a problem.
That's where the HD Signs mod makes a really small change into a really big quality of life upgrade. Not only does the mod help with immersion, it helps with the very literal headache vanilla Skyrim VR can give you from all the squinting it forces you to do.