The latest revision of Logic also has its issues where, when using multiple plug-ins like Frequency Analyzer set for high resolution and refresh rate, the screen redraw can get painfully slow.
Doesn't affect me as I rarely use analyzers, and then rarely more than one analyzer at once, two exceptionally. The issue also seems not to hit as hard on older versions of the OS, and I'm still running an older OS.
But yes, I've definitely noticed that the exact same project loaded in both S1 and Logic will start to lag first in S1.
Other than the aforementioned issue w/ frequency analyzer, and w/ the exception of a couple of faulty plug-ins, Logic is the single most efficient/stable DAW I've worked w/. By far. I never even imagined I'd be able to run such projects on a MacBook, consistently, day after day, w/ no optimization and stuff running in the background.
That being said, when I worked w/ Sonar, I knew it so well that my workflow adapted to it and I could work very fast too.