iVPN vs ProtonVPN

I wouldn’t recommend RapidVPN nor would I recommend Cyberghost at all since they are quite shit VPNs. You should look at Mullvad, Proton or IVPN for security and privacy since they don’t gather any logs.

I've been wanting to test-run a WireGuard VPN, to compare to ProtonVPN's IKEv2 connection. So, I purchased a 30-day subscription from Mullvad VPN, and connected my Samsung Note 10+.

Of the two, I personally subscribe to Mullvad because they have a larger server network (more servers in more countries than IVPN) which results in great speeds and also because of the significantly lower price.

As the OpenVPN wrapping of the wire packet sent to the remote side then typically goes below 1500 bytes - which most of the Internet infrastructure mostly tackles just fine. Otherwise, if the TUN packet itself is 1500 bytes, the OpenVPN wrapping increases the packet size enough so the packet often ends up being split into two packets - which impacts performance. Now mssfix is set to 1450, which is helping - but only for TCP packets, not UDP.