Ensure your SSD is formatted to APFS if using High Sierra for faster file access.
Better performance when handling H.264 and DNxHR codecs.
Keep your Hardware Buffer Size high (1024) during mixing and low (64/128) during tracking.
The Pro Tools 12.8.3 update represented a significant milestone for macOS users, particularly those transitioning to High Sierra. This version focused heavily on stability, performance optimizations, and critical bug fixes that solidified the DAW's reputation in professional environments. Pro Tools 12.8.3 macOS Overview
To ensure a successful installation of Pro Tools 12.8.3, your system should meet these minimum requirements: Operating System macOS High Sierra (10.13.2) macOS Sierra (10.12.6) Mac OS X El Capitan (10.11.6) Hardware Requirements Intel Core i5 or higher (i7 recommended).