Game Lag

In 0.6.1 when you were flying buildings , mountains etc appeared slowly as you can closer. Now they appear instantly from all the sudden. Its like theres half image cut n then it appears all like if it was loading or lagging all the blocks. Please fix this I dont know if its due to the smooth lighting or not but its annoying . It takes the beauty of game , things vanishing and appearing from all the sudden when you fly. Its not the proccessor because I won A razr HD with a Snapdragon, fastest proccesor on Smartphones.