While you can upgrade the RAM and install a SSD, that will not improve game performance. Your laptop has an AMD E-240 which is a single core APU with the integrated Radeon HD 6310 graphics core. The AMD E-240 was considered weak even when it was new. There is no real reason to dump money into that laptop, it is best to buy a new one.
I recommend the ThinkPad E555 which comes standard with the dual core A6-7000 APU with the Radeon R4 (Kaveri) graphics core for $455 + tax. It will be a big improvement to what you have, but I recommend you upgrade to the quad core A8-7100 with the slightly more powerful Radeon R5 (Kaveri) graphics core which will bring the price to $484 + tax.
http://shop.lenovo.com/us/en/laptops/thinkpad/e-series/e555/...