our company has very huge woocommerce website. We has over 200, 000 products. sow product search is very slow.
we are using ajax search. this plugin works very fast in our huge store too? If it can work very fast in our huge woocommerce store too, I will purchase this plugin
More generally, WPSOLR search is close to instantaneous (in ms), especially if you install Elasticsearch or Solr locally.
Therefore, it is the time spent by your theme to display the results that will make the difference. To get a rough estimation, just measure the time your site takes to load an individual product details. It will be similar to your search total speed.
But even more important, WPSOLR brings you scalability: it is not only fast for one visitor, but also for many concurrent visitors. This is not the case with other plugins that only improve MySQL search.