My original remark is misleading. What happens in the analysis is the following:
- The entire montage is first rendered (this takes a long time).
- Then it is (internally) split into title regions.
- The analysis then takes place in parallel (multiple cores). This is fast because the rendering was already completed in the first step.
That being said, in the future, there are plans to render the titles using multiple cores. In that case, since the plugin processing would be parallelized, there would be a significant speed gain. For example, in the theoretical case of a montage made up of 10 titles, each of the same length and with the same plugins, the whole rendering on a machine with 10 cores would be sped up 10 times.
However, the rendering speed of the entire montage to a single file can’t be accelerated (well, it could, but not without minor side effects; see this past discussion WaveLab 11.1 does not use all resources available on Apple Silicon - #38 by PG1)