PageSpeed Insights improvements

When using the PageSpeed Insights tool the following issues relating to Trustindex are shown (we are a paying customer of yours on the PRO tier).

Does not use passive listeners to improve scrolling performance
Consider marking your touch and wheel event listeners as <code>passive</code> to improve your page's scroll performance. Learn more.
Source
/loader.js?dcdda02…:1:4904(cdn.trustindex.io)
/loader.js?dcdda02…:1:5101(cdn.trustindex.io)

also

Image elements do not have explicit width and height
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn more
Failing Elements
…Trustpilot/logo.svg(cdn.trustindex.io)
Trustpilot
<img class="ti-logo-fb" src="https://cdn.trustindex.io/assets/platform/Trustpilot/logo.svg" alt="Trustpilot">

and

Serve static assets with an efficient cache policy 6 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more.
WordPress
Read about Browser Caching in WordPress.
URL
Cache TTL
Transfer Size
/loader.js?1acd6b4…(cdn.trustindex.io)
None
5 KiB
/loader.js?9181c05…(cdn.trustindex.io)
None
5 KiB
/loader.js?d51bf35…(cdn.trustindex.io)
None
5 KiB