10 mbps download speeds for any streaming device would introduce buffering or choppiness. I recommend increasing your internet speeds if you can (I know you said 10 mbps is the most you can get at the moment). A lot of factors play into whether or not it is sufficient such as ISP (throttling, sharing of bandwidth between internet and tv, # of devices connected to the internet, distance away from router, interference, etc.). The player is great overall and would work with your tv. It will play 1080P. When you upgrade to a 4K TV, you will most definitely need an upgrade to your internet speeds. Having 25-35 mbps will work for most people although I recommend at a minimum 40 mbps for a smooth quality. Streaming sports will look great after the upgrades, but it also depends upon your tv’s ability to handle motion. For your current tv, it depends upon how your tv handles motion and how high your download speeds will be. I recommend starting with upgrading your internet service either concurrently with your purchase or shortly afterwards. Without knowing your environment for the internet and your tv mode it is tough to say 100% the streaming will be flawless. When researching a new tv, I suggest consumer reports and heading into Best Buy to see them first hand and ask questions. I hope this helps!