Thank you for the post @Lakshmikanth
Unfortunately, there are no specific debugs / diagnostics for vwire, so troubleshooting is limited. Have you tried to check basic things like duplex/errors/drops of interfaces configured for vwire from CLI: show interface <interface name> ?
One thing that I would try right off the bat is removing any security profiles you may have assigned and creating a "any any" allow rule at the top of your security rulebase. With that rule active allowing all traffic to pass just going through App-ID, see if your latency goes away.
Since you didn't mention where you are actually seeing latency or among what type of traffic, this will see if it's possibly being caused by the firewalls inspection process or if it happens just from having the firewall in-line on the connection. If the latency goes away we'll know that the actual issue is actual inspection instead of simply having the firewall in-line on the traffic. V-Wire deployments without any security features enables shouldn't see a massive increase in latency like that, but it's possible that content inspection is introducing latency on some of your traffic.
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