Ateeq Rafeeq

Make sure you are using a good hosting company like HostGator, BlueHost. Godaddy is not that better but their cPanel hosting is also good. Mostly issue is with the hosting if you are not using any new extra plugins.
For performance i recommend you to use. Autoptimize WordPress plugin https://wordpress.org/plugins/autoptimize/ if you already have installed some plugins for speed optimization deactivate them. Use EWWW image optimizer along this plugin as well. In Autoptimize settings please enable minify, html, css and javaScript as well.
If you want to hire us as your permanent Maintenance support team please check what we do here in so good pricing. https://www.webfulcreations.com/wordpress-maintenance/
If you want our Speed optimization service only you can order here >> https://www.webfulcreations.com/service/wordpress-speed-optimization/
Thanks any further questions let me know.