Hello, @Roland,
1. We have tested your site in incognito mode and it is functioning properly. Both the 5 Column and 6 Column Grids are working correctly, as is the pagination. I have recorded a video of the test for your review. Please view it here: https://www.veed.io/view/104e6350-aca3-4b37-bf88-61e481b36b70?sharingWidget=true&panel=share & https://www.veed.io/view/816fc747-d114-4823-a2c0-108b9c03d033?sharingWidget=true&panel=share
2. We have tested your website on GTMatrix and the results are not satisfactory. You can view the report here: https://gtmetrix.com/reports/data.rborod.in/62h4psS9/. We suggest that you take the necessary steps to address the issues highlighted by GTMatrix, which can be found here: https://postimg.cc/yD8tkVk2.
We recommend that you contact your hosting provider to improve your server performance and delete any unnecessary themes, plugins, content, and media from your website. Additionally, please refer to our theme documentation here for instructions on how to speed up your website: https://xstore.helpscoutdocs.com/article/100-how-to-speed-up-my-website & https://xstore.helpscoutdocs.com/article/128-how-to-improve-wp-rocket-settings-with-xstore.
We hope this information is helpful.
Best Regards,
8Theme’s Team