Mobile Tethering Hotspot being extreamly slow on my Windows 10 PC

[MrFortuneCake_1]

So I am currently using a hotspot at my address so that I have connectivity on my gaming PC, MacBook and PS4. For some Unknown reason my MacBook and PS4 connection is running fast and smoothly. But with my PC that is not the case. I have a iPhone X which is giving me about 3 Mbps which is really good but my PC seems to only be getting max 500 Kbps. Which is rubbish. I have tried most things to fix this issue like only having my PC connected to the hotspot, No difference, Moving my phone to various places around my house because I have recently moved. That didn't work. It doesn't make sense. Does anyone know of a fix or anyway I can make my Hotspot work much more quicker or maybe even go though a potential fix for this. Thanks guys

[nil]

What is your model of your PC?

Or, if you built it yourself - what model is the motherboard?

[MrFortuneCake_1]

The Motherboard is a Acer Vention I think so its a pretty old mother board and no I did not build the pc myself, I was using hotspot at my old house and I had less 4g signal and I was getting 1 Mbps which is weird.

[nil]

If it's an older computer/mobo, check the manual and verify the maximum speed of the onboard wifi