Serch delivering results to hard

Hello oc developers!
So, i use Journal teheme, Opencart 2.3, custom works on theme and modules. ow my search load too much. I'm working with one team developers but with no results. They don't find what make search to hard.
I'm watching to buy iSearch Corporate Intelli-Sense Search but they don't give me return services if module don't resolve my problem. I'm watching to hire a developer who do that but i need the best developer who play with that problems.

You should better have posted this request in the commercial Forum Section,
here, it is easy overlooked, and Dev's don't spend a lot of time in the open Sections.
Good Luck!
Ernie