Hi Rajkumar,
Welcome to the QSM Pro Support Forum. hope you are having a nice day.
I watched the video and noticed that the webpage is loading very slowly to fulfil the requests from the server. Even after the quiz loads on the page, it’s settings are not loading properly because of the ongoing requests from the server.
This thing happens when the website is too heavy for processing or the server is too slow for processing all the requests. My suggestion would be to deactivate all the unnecessary plugins/any other content that you do not need on your website. Test your page loading speed with the tools available online. Complete the suggestions they provide to you. And also contact your webserver to check with the speed.
Kind Regards,
Kriti