How Can i integrate WordPress Toolkit in my wordpress website correctly?

I have a WordPress website Paint Ball Mask customize with Generate press premium without any page builder when I integrate WordPress toolkit by Plesk my website load time increases, I don't know why nowadays page speed matters a lot, can anyone suggest me the actual setting of WordPress toolkit by Plesk.
I am using several plugins and extensions.
1,wp rocket
2. wp smush
3. shortcode ultimate
4, loginizer
5. Yoast SEO plugin
some more plugins for...

How Can i integrate WordPress Toolkit in my wordpress website correctly?