With EE I can do Frozen, SRL Test Track, Soarin and Rat by 10:30ish on a good day. I can walk fast though, and that’s without breakfast.Back in the original FP days I could rope drop Epcot, ride Soarin' and TT twice each. Grab breakfast at Sunshine Seasons after Soarin #2, ride SSE and leave by 11:30. I don't know if that's possible with the current LL system. If it is, now it costs extra while I used to do it for free.
To hit that rate you've got to be in very short queues. For some rides like RotR, I've ridden 3x back to back during slow times (not using LL) but it takes almost 2 hours due to the queue length just to walk through, the few minutes waiting to get sent to the pre show followed by the 3 part pre-show with another queue before part 3.