Hello @azbarga,
We have conducted another review of your website and the mobile result has improved from 28 to 53. While this is a positive development, there is still room for improvement. Please review the following issues: https://postimg.cc/SjRD3Zbq/.
Please find the result and the suggestions for the URL https://pagespeed.web.dev/report?url=https%3A%2F%2Fbuac.net%2F.
Remove/Delete the other themes from your site which are not needed OR used.
Remove/Delete the other third-party plugins from your site which are not used on your site.
Remove/Delete the extra content like images, pages, posts, products, blocks, and elements not used on the sites.
Try to contact your hosting provider and ask to increase the server performance.
Try to use the cache plugin like WP Rocket and also our Theme Optimization options as well under Theme Options, to Minify the CSS and extra functionality.
This should help to speed up your site.
We hope this information is helpful.
Best regards,
8Theme’s Team