VPN failover to WAN

[mtk]

Hey,
I've set up my pfSense to send traffic via VPN (AirVPN in this case) instead of directly through WAN.

Is it possible to set some sort of a failover so that when:

• VPN throughput drops below a certain threshold

• VPN/server is offline (shouldn't really happen but…)

the traffic would be routed directly through the WAN?

Thanks,
M.

[mtk]

UPDATE: this is probably not going to be AirVPN as my 50/50 (without VPN) connection yields a 0.5/0.2 (with AirVPN)…