Who can help with the upgrade advice? friend would like to play dota2 + stream on 1080 with no lags. his budged it 350-400$ here are the parts he has: aerocool vx-750, amd ddr4-2666 pc4-2138 r7, ssdnow kingstone a400 120gb, WD blue 1tb, AMP Ryzen 5 1600 3.2 hz/16mb, msi pci-ex geforce gtx 1050 Ti gaming x 4gb, asus prime b350-plus , soooo what to upgrade?