Apply a QoS on the VPN interface to see if this will increase the response time on your critical applications. It looks like the link capacity is not fully utilized since the physical interfaces communicate with a stable ping.
Routing and Bridging Firewall Solutions
Apply a QoS on the VPN interface to see if this will increase the response time on your critical applications. It looks like the link capacity is not fully utilized since the physical interfaces communicate with a stable ping.