Nimbostratus
CirrocumulusI can't comment about how you deploy Jboss in your servers, but I can provide some guidance about to troubleshoot on the F5 device.
You reported 2 problems, slow page load and changes in content.
Slow page: You need to capture the traffic in the F5, and check if they delay is added by the F5. Basically, this packet from the server entered in the F5 and left x seconds after. Have a look in the tcpdump command to check that:
https://support.f5.com/csp/article/K411
Changes in content:
Beside the tcpdump, you need to run the ssldump to decrypt the traffic between the client and F5. You want to compare the content sent by the server with the content sent by the F5 to the client. Have a look at the ssldump command to check that:
https://support.f5.com/csp/article/K10209
If F5 is the cause of the problem, please provide more information, and I can advise in what look next.