i have been getting very slow downloads ramp up but good speed tests for weeks

2 days after i got tmobile home internet my settings went from fantastic to pretty lackluster and its been that way nearly 3weeks ago, everything was fine when i first got it then someone changed the settings now its a real pain to use. I will report a good speed test but i never get it for anything, there is a incredibly long ramp up for downloads http, https, downloads, and ping is now doubled it went from 60-70 to 160 and its an issue now. downloads start as like as low as 100k or 600k and very slowly ramp up to speed and it is really annoying and not a good product, and this is applied to everything except a download manager like steam, ubisoft. or speedtest everything else is really really slow with a download ramp up.

On cloudflare.com they have a speed test for small files it reports what i have noticed using my bandwidth trackers any where from 100k to 600k starting out and a very slow ramp up. Sometimes when i go to download something it will go really fast then cancel ill resume then it cancels over and over, ill tether it to a phone and its fine i go back to tmobile and it starts getting cancelled again, almost like someone is doing it manually, and it will happen on several sites. And i also have been getting timeouts and corrupted files sometimes since the settings were changed

below are tests over a day and one bad cloud flare test not not the worst and one really good speedtest along with times and day

please share your cloudflare speedtests because i feel that the download slow ramp up throttling with good speedtests is really excessive and  a scam and its really the only way i have been able to prove it

thanks for reading