I have a Elitebook that my dad gave to me recently as he got a new laptop. I downloaded Minecraft and every time that I play the game lags a lot. The game drops to around 15fps every time I move around but easily reaches 80fps while not moving. The lag does not occur that much in creative mostly in survival. I have turned off fancy settings installed optifine set the render distance to small and used razor game booster to try and help fix the problem. Please help if you know a way to fix this problem.
Specs:
Intel Core i5vPRO M520
Windows 7 32-bit
Intel integrated graphics
4g of 1666mhz ddr3 ram