This has been posted in Obsidian Linux and marked as resolved but whatever fix was made (if it works) hasn't been made available to Windows.
The search bar is extremely slow and it's been scripted so that when the bar loses focus the search is cancelled so you literally have to wait and cannot get on with anything else whilst you wait.
The search which used to be in the left hand column was fantastic, whatever has been done since it's been made horizontal across the top has made it...
Extremely Slow Search Bar - Plesk Obsidian Version 18.0.29 Update #2
The search bar is extremely slow and it's been scripted so that when the bar loses focus the search is cancelled so you literally have to wait and cannot get on with anything else whilst you wait.
The search which used to be in the left hand column was fantastic, whatever has been done since it's been made horizontal across the top has made it...
Extremely Slow Search Bar - Plesk Obsidian Version 18.0.29 Update #2