5G rubbish upload speed

[Charles2022]

Can anyone explain why the upload speed with a 5G connection is so abysmal? In different locations I typically get 100-600Mbs download speed and 0.5-3Mbs upload speed. If I disable 5G the 4G speed at in the same location is around 60Mbs download and 15-25Mbs upload. I've spoken to 3 support which, unsurprisingly was a complete waste of time, really no idea what I was talking about. 

[Charles2022]

The reason download is faster than upload is simply because of the way they manage network capacity, they assume people download far much more than they upload, my point was why is 5G so slow?

[Kelly4]

I understand but don't understand then why the 4G upload is so much faster?

I just got a 5G phone and the download is 300+ and the upload is often less than 1.0!    Upload wasnt' super fast on 4G but it is at least 10x faster .

I was hoping it was jut my SIM being a couple years old but I suppose changing it won't help. 

[sc1999]

I think that it is a bandwidth issue. I think 3 are struggling to instal 5g fast enough to keep up with demand. There have been several posts about 5g for phones available but home broadband not being available. JonathanB said in an answer that home broadband may not be available as " it likely means we currently have as many broadband users as we can confidently support in the area". So I think that they may be sacrificing upload to either squeeze a few more users on to the system or to provide those already connected with a stable download. 4g is so bad in HR2 that I have added a Vodafone sim to my phone for data.