I have the l75d-a7288 toshiba satellite. It runs on he A8 5550m APU which is very slow for even light gaming or having too many tabs open. It also seems to be the bottleneck of the computer. I am thinking about upgrading the APU to the ryzen 5 3400g or maybe even waiting until the 4000g models come out. The sockets match and im pretty sure that the APU isn't soldered onto the board, although im not sure. Would cooling be an issue? Is it a good decision? Any other suggestions?