@tomascamin Hi. I have the same issue with slow debugger attach time. I've found a workaround. I always use iPhone 12 Pro simulator to test/debug my app. When I switched to iPhone 12 Pro Max the issue disappears. Try to select different simulator.
@JDevlieghere Hello. Xcode 13 RC is still have critical issue. debugserver use 100% CPU when I run app in the simulator. I cannot do nothing for about 10 seconds because my CPU is 100% loaded. Please, fix this issue.