EvolutionLovesU

Its been a while since I last played but I ran into a huge issue... It takes about 2,400 miles an hour to get a basic orbit around Kerbal. You NOW have to get below 1,700 miles an hour just to not burn up and die. This requires me to use a whole other tank of fuel just to get under 1,700 miles an hour when in re-entry from an orbit. Does anyone know how to fix this back the the way it was?