Hi, college student with very little travel experience here. I'm going to France for the first time this summer and I'll be staying in Grenoble. On the way back I'm flying from Lyon to Paris CDG and then taking a separate flight from Paris CDG back to the U.S. My first flight is scheduled to leave Lyon at 10:15 AM from Terminal 2. I booked a train to get from Grenoble to the airport that is supposed to arrive at 8:22 AM. Is that enough time? It's basically 2 hours, but I was reading up on the Lyon airport and a lot of people were complaining about long lines and missed flights. My flight is on the earlier side of the day and it's domestic so I was hoping lines wouldn't be too bad, but is that too much of a gamble?