How does CHD format works on Lakka?

Hello,

I would to like how CHD roms work on Lakka. It means if depends on Core and if the CHD rom is uncompresed in memory or if Lakka use temporary file in hard disk.

I have seen with Sega Genesis rom zips that the zip is uncompresed generating a temp file which is deleted after close the content, but this are zip files, CHD is a different compressed file and I don’t know how it is dealt on Lakka.