WHEN DO THE FPS DROPS OCCUR, I'll tell you.
- Every area with lots of smoke and/or mist
- Each time you fight a dragon. Taking its breath straight at your face really kills the fps
- Each time you fight a dragon priest. Biggest fps drops when the priest dies and dusts himself to the ground
- Each time you fight a mage/any spellcasting folk. Always Fps drops when you get hit by a spell..
- Each time you cast some huge spells like fire storm. Always when I cast Fire Storm, its like watching a slideshow...
- For some reason, most of the fortresses are really fps killers. Try visiting Bloodlet trhone or Mistwatch...
- Particulary bad areas:
Riften
Ratways and the Cistern
Autumn forest around Riften
Swamp area between Solitude and Morthal
Solitude
Gildergreen Sanctuary (cant remember was it called like that)
Volcanic Tundra
The large plain around Whiterun
Dark Brotherhood Sanctuaries (especially the one if Dawnstar)
Windhelm (cmon, the place looks like crap and still huge drops..)
I could go on with the list but dont really feel like..
I just hope that when Dawnguard arrives we dont have to go trough places like the ones I listed above..