[quote=“Balmungmp5”]
If you have a public IP on both devices, you can just set up an EoIP tunnel to make a layer 3 tunnel. The most bandwidth I have seen pushed over a VPN tunnel in mikrotik has been over EoIP.
[/quote]
EoIP is layer 2 tunnel, also EoIP is GRE, so instead of using it in layer 3 you can use pure GRE tunneling. And yes, GRE slightly faster, than L2TP because overhead is lesser and I think GRE packets are routed faster than UDP packets.