Wireless Bridge Performance Issues

I am a bit puzzled. This is a straight forward setup, but I cannot seem to resolve my issue.

I have an a core router directly plugged into an OmniTik. The OmniTik is linked to an SXT via NV2. I have a CAP directly plugged into the SXT. The OmniTik is setup in Bridge mode, the SXT is in Bridge mode and the CAP is in AP Bridge. While using Winbox into the CAP performance is great, however any clients on the WiFi behind the CAP the performance is sporadic. I have run various Ping’s traceroutes, WireShark etc. From the CAP Winbox all is great but from the WiFi, behind the CAP the traceroutes are the same, but performance is just awful.

Any thoughts?