Windows 10 speed = 360 down Ubuntu = 850 down??? - Internet speed issues

So bit of a puzzle on my own system, 850 Mb/s down when booted into Ubuntu but only 360 Mb/s down in windows 10 (consistent), speeds are not caped (As in change +- 10 Mb/s)...

I have tried:

Setting adapter to full-duplex

A gigabit Ethernet to USB adapter, no change (same speeds in Ubuntu and Windows)

Looking at task manager (Nothing using the internet during the test)

Safe Mode (With Network)

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Note:

I have a 2 VPN software (Express and Open) (Express was installed after the issue was there)

I have Oracle VirtualBox installed (Network related software)

The same cable used for all testing, no network changes during.

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Any ideas/suggestions?