While we usually tend to look for a system reason, there are a few things in BIAB you can adjust to see if it helps.

1. Options, Preferences, RealTracks. Uncheck Speed up generation of RealTracks, and set the choice underneath that about Stretching to Low
2. Same menu, just above: put a check in the checkbox for Use +- RealTracks
3. In Song Settings (Ctrl+N) put a check in the checkbox for This Song Has Playback Problems

And back to system solutions:
1. defrag your hard drive
2. try the free Latency Monitor to look for frequent spikes


BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.