Not a massive problem, no, but very irritating.
i wouldnt do it myself in an offline game where precision isnt that important, but maybe try that trick alot of ps3 users (including myself) are doing with bf3. playing at the lowest resolution might fix the issue in skyrim too.
you do it by only selecting the lowest resolution in your ps3 display settings, de-select 720p, 1080i, and 1080p, leaving only 576p(or 480p if in US), only thing the game will most likely look like crap, just like when you try it with bf3.