Even if I am connected to ProtonVPN and not engaged in activity, Starlink will artificially cut my speed to 1/3. When I disconnect, the speed will go back up. Maintaining a vpn requires very very little data, so it's not that.
The test is conducted on a secondary device not connected via a VPN, using the starlink speed test.
This has happened 5 times now so it's very consistent. Not sure why they are punishing users (or just me) for using a VPN
https://protonvpn.com/support/increase-vpn-speeds/
Since prton also supports wireguard, it is in the vpn wireguard settings where you can change the MTU settings.
check this out ....https://safing.io/spn/
Thanks for the tip