Line removing

Hi,

what you see is the link outline. This is the default indicator that the link is focused. Some of your users may navigate through your website with only a keyboard using the tab-key, such an indicator is useful. Since also the color gets changed you could remove that using the following CSS. But removing the outline is not useful in every scenario.

#main-nav ul li a {
  outline: 0;
}

Thanks…
It did not look good..

? Site performance is low (PageSpeed Insights (Low 36%)). Is there a problem with site codes? what are your suggestions?

? Which Cache plugin for the Meteorite Theme (WP TotalCache, SuperCache …) is recommended?

You should optimize all your images. The slider image hazeski-1.jpg is 1.8 MB large, that is far too much. You can use an image optimization plugin like one of this list.

I didn’t tested any of these cache plugins, that’s why I can’t provide you any further help with this.

Feel free to take a look at some of these lists:

https://www.wpbeginner.com/wordpress-performance-speed/
https://www.sparringmind.com/speed-up-wordpress/
https://websitesetup.org/how-to-speed-up-wordpress/

Thanks..