Search speed

I’m new to eM Client. I very much like its sleek design and functionings, except for the speed of searching. I use email as a “central storage”, and thus the eM client folder size is over 16 GB. The search function is very important to me, but very slow in comparisson to Outlook - the search in Outlook is under 1 sec with the same size of inbox, whereas in eM it’s more than 25 sec, when using just fields in mail headers, not body.

Is there any way to speed up the searching, like indexing or similar? If not, I will just stay with Outlook.

Well, I found the so called ‘search folders’, created one with an empty filter, and am using it for ad-hoc searching. It is very fast, so problem solved.