I did a post 4 years ago exposing the "corona high quality" denoiser
https://forum.corona-renderer.com/index.php?topic=32452.msg182932#msg182932It just become my secret sauce for faster rendering, i did chat with the developers at that time and they SAY that they knew about this, corona denoiser being subpar with the intel One But meh it was never solved or looked in 4+ years.....
Feel free to render with 10% noise limit and intel denoise on 0.65
I render all our animations with these same settings, on animations i can go up to 12% noise...