Phone playback faster than TV

Recently made the switch from cable to FuboTV and have been enjoying it so far. I mainly watch sports and I did a test the other day to see how the playback was between my phone and my Roku tv. My phone was about 15 seconds ahead of my tv. Both are on the same home WiFi which is pretty good. Any recommendation to get my tv speed closer to the phone speed. Not a massive deal just a little annoyance.