IPSEC Site to Site between XG230 and SG330 incredible slow

Hi I have 4 sites.  3 of which are running SG330, my other is on XG230.  My Site to Site traffic via IPSEC between the SG330 devices is just fine. However from any of the SG devices to the XG my transfer speed is barely 2Mbps.  All 4 locations have either 100Mbps or 150Mbps Fiber at them.  Anybody have some insight on what might be going on?