PPTP Server and SpeedFusion setting of Peplink710 for Macbook Pro Retina

Today I installed Peplink710 router with 3 WAN successfully.
And PPTP server setting also works well with Macbook pro Retina which resides outside.

But I don’t know how to setup SpeedFusion properly to support more speed for Macbook outside.

Isn’t it possible to load balance the traffic of our multiple WANs to PPTP tunnel for the Macbook?

SpeedFusion and PPTP server are two separate things. SpeedFusion is a network-to-network VPN solution, while the PPTP server is a client VPN solution.