We flew back on a Tuesday on the 1:35 flight out of EIS (arriving around 4:45). It was a ridiculous amount of walking, but we never had to wait at any step of the process. We are not global entry or anything else. I am TSA precheck, but my wife is not and that didn't really apply. We may well have just gotten lucky on a quiet afternoon. The small flight from EIS undoubtedly helped as well. I also recall the deplaning process felt very long, then they piled us onto a bus for some reason, which I believe was just to take us further away from our next destination... and that process felt like it took forever.
We had a 2.5 hour layover and we had plenty of time once we got done re-checking bags to wander the airport, get something to eat and drinks and still get bored waiting around for our flights to board while spending $20 a drink on watered down rum and cokes trying to stay awake to make the flight home.
All in, I think we were at our next gate within ~45 minutes of landing, but we may well have just gotten lucky.
The idea of driving to Miami and flying from there is starting to sound really appealing for our next trip, even from Jacksonville!