I downloaded 0.9.7 last night and was playing dothack infection at around 50-60 fps but today it's running around 15-20. All the settings are exactly the same as they were so I don't understand how this is possible.
Problem heating i guess, please check temp your cpu.
Perhaps. I've encountered this problem before when suddenly Warcraft III drops FPS to 15, but after shutting down for 10 mins it goes back to normal, and drops again after 15 mins playing. Using EVEREST to check the temperature, OMG 78!!! Had I not cleaned the fan, now I would be at the market looking for a new laptop.