I'm using Magento 2.2, my customers complain about loading speed is a little bit slow. If anyone have an extension which is increase the Magento store loading speed, please suggest Thank you
But have you checked if there are any issues with the store?
And what does https://gtmetrix.com/ say?
You don't need a new extension to increase Magento store. It is quite opposite - you might need to remove some 3rd-party extensions to make the site faster. Get a list of all your custom extensions and try and remove them one by one and benchmark the speed.