17.2 a lot slower to me, can I downgrade?

I have a lot of issues with this last update, and I think it might be a bug o maybe some performance issues that is hopefully temporary, so i want to downgrade to 17.1b8
Can I save mi database from 18.2 and open it with an older version?
In the upgrade is all automatic, so i want to know if theres any specific procedure I should follow
Pic with my specs
Can I save mi database from 18.2 and open it with an older version?
In the upgrade is all automatic, so i want to know if theres any specific procedure I should follow
Pic with my specs