Should I upgrade my computer or buy a new one for gaming?

pan983da

Prominent
Nov 24, 2017
1
0
510
I have a Lenovo H535, CPU A4 5300, 3.4 G, 1 T HDD, 4 GB RAM, ODD DVD RW, windows 8, 50-60 Hz and my son wants to have better gaming performance because he is experiencing lagging/ghosting when playing Overwatch. Don't get help from Lenovo software or Cust Serv to know what I need to update or if computer is upgradeable or just better to get a different computer altogether. I know very little about computers and gaming. Thanks.