Last week, my tekkit would run, (minimum smooth lighting, fast graphics, normal render distance) at about 45 FPS witha maximized window. I havent played this week because ive been busy, but now when i play on the default window size i get 20 fps, same settings as above, and on maximized window, i get no more than 5 fps. Anyone know what might be causing this?
EDIT: tried tekkit lite, classic, and hack/mine, and they had the same issue. Might be a launcher problem then