Owc10 - migrate MySQL to PostgrSQL and indexing


I’d like to know if there’s possibility to convert MySQL to PostgrSQL… I have lots of users and files and it seems MSQL is too slow.

Second thing is - can I put files to DATA dir via console and run sort of indexation to build database instead use OWC Client?

Operating system:
Deniab Stretch

Web server:
Apache 2.0


PHP version:

ownCloud version: (see ownCloud admin page)
10 - newest

Updated from an older ownCloud or fresh install:
Installed 10.

Where did you install ownCloud from:
webpage zip

Thanks in advance