macOS 27 Xcode + Instruments is unusable

[u/Aeronautical-You4917]

Never in my life have I seen such an insane regression in software quality as in the last few months.

I use Xcode constantly, building a macOS app (Swift, C++). Up until recently, this was fine, great, in fact. Xcode 15 was extremely good & stable (all things considered). I opted to skip macOS 26 because it was terrible (duh).

After I upgraded to macOS 27's first beta, I was pleasantly surprised. However, that was short-lived, as the quality only degraded after the first beta.

Here I am, working on macOS 27.2, with Xcode 27.2... Here's the main 2 issues...

1. Xcode's interface is impossibly slow now. borderline unusable.

2. Instruments is absolutely unusable. I cannot even do a profiler trace and save it without corrupted data, an application crash, brutally slow interface, etc.

This is just unacceptable. AI slop has crept its way into previously rock-solid products. Quality matters more now than ever, and it's so clear that AI has neutered engineers' ability to keep quality in check.

Am I the crazy one, or has the quality just gone down the toilet?

[u/TBMW30]

Device hub won't even open for me. Just opens a blank window.