question

Hi all, I've recently bought an amazon firestick and I'm having a few issues with what appears to be the wifi connection. Certain tv shows and movies (Genesis) will load fine, yet others will come up as no stream available, even some of the working ones though don't have the amount of streams that they should have. The biggest issue is the streaming of live sports on sports devil, the site that was recommended to me has no stream available most of the time, and the others are very hit and miss. For anyone wondering what my internet speed is, it is 11mps. Any help would be greatly appreciated Hughesy