Severe lag in Adobe XD on macOS Tahoe 26.1 (started suddenly, not after OS update)

Hi everyone,

I’m running into a serious performance issue with Adobe XD on macOS Tahoe 26.1 (Mac Studio M1 Max).
XD becomes extremely slow and unusable immediately after launching — UI lags, canvas interaction is delayed, and even moving the viewport is almost impossible. All other Adobe apps (AI, PS, ID) run completely fine.

What’s important:
The issue did NOT start right after updating macOS. It appeared 3 days later, without any system changes or new software installed.

What I already tried (none of this helped):

• full reinstall of Adobe XD
• deleting all Adobe XD caches + plist files
• trying to launch XD with GPU disabled (via Terminal arguments)
• validating all system fonts (no problematic fonts found)
• restarting Mac

Additional info:

• The lag happens even with a brand new empty XD file.
• It happens immediately when the app loads, before opening any document.
• Library syncing is on.
• No CPU spikes, no excessive RAM usage, but the UI thread seems blocked.
• All Adobe apps except XD run perfectly smoothly.

Question:

Has anyone experienced this sudden performance degradation of Adobe XD on macOS Tahoe?
Is there a known workaround (GPU layer fallback, cache location reset, CoreSync rebuild, font index reset, system-level flag, etc.) that could fix this?

I rely on XD daily for UI work, so any guidance or diagnose steps would be highly appreciated.

Thank you in advance, 
J. Cink