I want to overcome the lag of my scenario. I know some ways to overcome lag and i tried my best to reduce the size but i think thier might be a way which i won't be knowing(note: not a serious lag) So kindly anyone help me out..plz. Will it work my re- scalling an Image???

Best to scale images with an image app like Paint. Image manipulation during program execution can increase the possibility of lag (or increase the present lag). Reducing the entire size of your scenario would probably help as far as lag is concerned Think of it -- cutting all length in half would reduce image file sizes to one fourth (1/2 by 1/2). Removing image files not required for the scenario would help load time.