My website use Flatsome and slow although I only use very few plugins

my website use theme Flatsome, although I only use very few plugins, mainly to insert the schema and redesign the article interface, it is quite slow. Is there any way I can improve it?
My website is: https://tai-sunwin.com

Hi,

You can disable some unused plugin or contact with your purchase item author @UX-themes hope they will helped!

Thanks!