Morning Cars Land Touring Plan

I’ll be at DCA on 5/21 for the first time. I want to do Radiator Springs Racers, Mater’s Junkyard Jamboree, and Luigi’s Rollicking Roadsters. The touring plans all recommend getting fastpass for RSRs first thing and then doing Mater before returning to RSR with the FP. However, when I evaluate the plan for the day I’ll be there, the software predicts a 10:35-11:35 am return time (this is a day with 8am entry), so there’s a lot of downtime in there. Is this return time prediction accurate? I was planning on following the 1 day plan for adults, but this makes it look like I can’t follow it exactly as written.