The best way to increase performance in this laptop is to increase system memory to the max allowed. If you are running a 32-bit version of Windows, 4GB total memory is allowed. For a 64-bit Windows, 8GB is max allowed. There are a total of 2 memory slots for two 2GB DDR3 1066 modules or two 4GB DDR3 1066 modules. Upgrading CPU's if possible, won't do much for increased performance