Hi @coruscate and thanks for your input!
You're correct! I am using my #huawei P10 smartphone to upload through my Vodafone 4G network... We live in rural Derbyshire UK and our broadband connection is very weak at 6mbps.
I get 14mbps on 4G hence the reason for using my mobile device instead of the laptop.
I'm going to tether my laptop and connect to my phone, using it as a hot spot.
It's a bit technical but I can do it.
Maybe I'll post another video showing how it's done... I'm sure people could work it out who are having similar issues though...its hardly rocket science 🚀 science.

Thanks again
Darren.