Skyrim Special Edition didn't launch on the PC without a few hiccups, but Bethesda has already pushed out Update 1.3 to Steam users through a beta release.
The update includes improved stability and performance, as well as better support for 144Hz displays. The patch is only available in its beta form on Steam right now, so you won't have your Skyrim Special Edition updating automatically.
Here's what to expect in the v1.3 update:
General stability and performance improvements
Fixed an issue where Slow Time effects weren't behaving properly
Better support for 144hz displays
How to access the Steam Beta
Log into Steam.
Right Click on Skyrim Special Edition in your Library.
A drop down menu will appear. Select Beta.
Wait a few minutes for game to update.
When done, Skyrim Special Edition [Beta] should appear in our Library.