Point 2. With speed issue, this is not in support section.
You can read some tips at here to try to improve speed: https://moz.com/blog/15-tips-to-speed-up-your-website. Also speed issue come from many causes, not just the theme. We always make many test to ensure that the theme have best score when buying them.
If you want our support team to improve speed of the site, please create a custom task and then we will do that.