Quality loss on import

Are you able to share one of the files you’re experiencing this with? It is possible that the import resampler is causing this. You are able to adjust the resample interpolation type by using FMOD_DSP_RESAMPLER with the FMOD Studio advanced settings at runtime.

https://fmod.com/resources/documentation-api?version=2.00&page=core-api-system.html#fmod_dsp_resampler