OpenTTD forks multiple processes per second if no proper Fluidsynth config is found
This could be resolved by merging !33423 (merged) and adding it to OpenTTD's depends, or removing fluidsynth from OpenTTD's dependencies.
As I already stated in !33423 (merged), it's.. mostly useless to ship a package without the required data packs, and this causes sigh problems like these.