Hi,

We see that you've managed to achieve this in the meantime ( https://www.screencast.com/t/BwCZmH0rVbV9 ).

Let us know if there's anything else!

Best regards,

Kevin

Hello,

1. If you are getting the error that destination folder already exists:

This means that plugin folder needs to be removed manually from the server. 
(You need basic FTP knowledge, and knowing your username/password for FTP, but explaining that kind of things is not covered with theme forest rules.)

Connect to the hosting server via FTP and just delete the plugin folder:

2. Here are some general tips for speeding up your website:

a. Consider optimizing your images with some tool like this one:
www.jpegmini.com

b.  Also you can install some plugin for cache, like WP Fastest Cache or some other:
https://wordpress.org/plugins/wp-fastest-cache/
https://wordpress.org/plugins/wp-super-cache/
https://wordpress.org/plugins/w3-total-cache/
c. Enable gzip compression on your server. You can read more about it here:
http://www.feedthebot.com/pagespeed/enable-compression.html

But it comes down to pasting this code to .htaccess file located in your folder:

<ifModule mod_gzip.c>mod_gzip_on Yes
mod_gzip_dechunk Yes
mod_gzip_item_include file .(html?|txt|css|js|php|pl)$
mod_gzip_item_include handler ^cgi-script$
mod_gzip_item_include mime ^text/.*
mod_gzip_item_include mime ^application/x-javascript.*
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</ifModule>

d. Also check - Leverage browser caching:
http://www.feedthebot.com/pagespeed/leverage-browser-caching.html

e. Use at least PHP 7 or greater in order to process PHP code faster.

Kind Regards,

Milica