In theory you could upgrade to an A10-5750M but sometimes even though the CPU is compatible, it does not work
From what Ive seen the only way to find out is to try it out, like I said, you can upgrade to an A10-5750M which would give you a decent boost in GPU performance and minor boost in CPU performance. But there is no guarantee it will work
Also if you plan to do this, first try upgrading to new A10 CPU and see if that works if it doesnt, put back old A10 CPU and update BIOS, then reinsert new A10 CPU and then check if it works. If after all this it doesnt work, you either got a bad CPU or your laptop wont allow for an upgrade
PS. Dont forget to buy some thermal paste and apply that