You did not include dates. IC has off late been running a better airline. You will probably be fine. With a 9AM arrival you could consider heading to the gate for their 10:15 flight to EIS. The afternoon flight tends to run full and the morning flight light. They might move you for no charge. If you have checked bags you might need to send someone to the airport to retrieve them later. It’s possible you might get them to move the bags up so ask but I would not hold your breath!
There is not much else you can do. They run 3 flights a day and generally it’s the same aircraft. Delays can snowball but it’s the late flight at most risk to be canceled. Looking at the last two weeks of flight history there were zero cancelations and only 2 long delays on your flight.