Fastest VPN type between Mikrotik and Linux

Hello everyone. Does anybody make a VPN perfomance tests between Mikrotik and Linux connectivity? I mean PPTP vs. IPSEC vs. OpenVPN. What type of VPN is faster?

pptp…

_up

Ipip followed by eoip and gre. But there is no security and no stateful management.
On your list, PPTP is the fastest, is stateful and may be MPPE128 encrypted (and is fast).