If you're using a Surface Pro 2 or Surface Pro 3, you should have a new update waiting for you. Microsoft has pushed a firmware update to both tablets aimed at improving graphical performance on Windows 10. Here are the details of the update from the Surface update page:
"HD Graphics Family driver update (v10.18.15.4256) improves graphics performance and stability on Windows 10."
This one looks to be only hitting the Surface Pro 2 and Surface Pro 3, and isn't listed for any other Surface models. You should be able to pull the update down from Windows Update now, and feel free to let us know if you notice any smoother graphical performance on Windows 10!
Thanks to Richard for the tip!