Issue is resolved. Call Tmobile and have them disable the Binge On feature from you plan and have them reset your cell connection. I have done this and can confirm the issue is fixed.
So, flashing the Pure Nexus Rom has given me some proof on some shady stuff going on the Tmobile network, thanks to the feature which shows your real time data speed in the notification bar.
I am an unlimited data customer, and as of a few days ago, I cannot watch an HD video on Youtube without lag, which is weird because Tmobile in Dallas is very fast, like 50+ mbps. I have always watched 2k video without any issues.
I noticed that whenever I run any video app like Hulu, Netflix, or YouTube... the download speed will not go above 1.5 mbps. Whenever I do anything else, like download an app or run a speed test, it goes much faster.
Look that these screenshots... this is some serious BS going on! I can confirm that the 1.5mpbs speed cap is also happening on Netflix and Hulu, but I cannot take screenshots in those apps because the apps block that.
Anyone else on the Tmobile unlimited data plan experiencing this BS?