Hey there, thanks for reaching out. Hopefully someone else from the community might be able to chime in on this for you.
If you have LOTS of queries coming up one at a time, it’s not going to be practical or realistic for the Percona team to be helping you out on a case-by-case basis, as the questions are going to be too specific to your own environment. We’ve given it a shot, but really once it becomes particular to an application we’re at the end of where it’s appropriate to provide professional assistance in an ‘open source and free’ forum.
If you need some professional support, though, I am happy put you in touch with the sales engineers here. They’d be able to look your case and work out how best to help you out.