ode The easiest solution would be a faster pace of play... (We can dream, can't we? 🤣 )
Two-tee starts are a bit messy at most Open courses, as the 10th tee is often at the other end of the course - St. Andrews, Royal Troon, Carnoustie come to mind. One creative solution (so something that the R&A wouldn't go for) would be to use two courses for the first two rounds, which would have been an option for an Open at Royal St. Georges, with Prince's right alongside. (Prince's is used for Open qualifying, and has previously hosted the Open - admittedly in 1932...)