My internet is throttled

[Samuel Jackson III]

I am currently using MetroPCS and realized that my internet was throttled this whole time. Im on a unlimited data plan. I did a speed test and get from 60 to 120 mbps but when I download apps it seems SUPER slow. I went to fast.com and got from 1.2mbps to 3.4 mbps. I looked up different videos but they didn't help. I was hoping someone could help me with this issue.

Have nice day