I make sure my own web game can run smoothly on crappy hardware. It runs well on my gaming laptop downclocked to 400MHz with a 4x slowdown set by Chrome. It also loads in a couple seconds with a typical crappy Internet connection of 200kbps and >10% packet loss. However, it doesn't run smoothly on my Snapdragon 425 phone or my old Core 2 Duo laptop. Is this my game or just browser overhead?