i didn't think rendering was the issue, i would have guessed latency was? I have a reasonable 4g connection right now but the latency is all over the shop but not symmetrically. Download is fairly consistent at 50ms with a 4ms jitter, upload is all over the shop. Im pulling 48Mb down pushing 8Mb up so no issues there for mobile gaming.
Im sure a home connection would fare better but I think latency will always be the spectre.
Never argue with an idiot. They will drag you down to their level and beat you with experience.