Update: beaTunes 5.2.7
This update improves overall performance of audio analysis, i.e., any analysis task that relies on reading audio data from files. Informal tests on a system with an SSD showed a roughly 50% performance improvement for audio normalization tasks (e.g., ReplayGain), which typically require reading through the entire file. Obviously, depending on where your files are stored, your mileage will vary. That said, reading audio in general should be somewhat faster, unless your HDD or (W)LAN is the bottleneck. This is the result of some tuning in the jipes library, which beaTunes uses for audio analysis, allowing the Java JIT compiler to better optimize the code.
As always, you can download the new version from the download section of the website.
Changes in 5.2.7