That&#x27;s covered in the next 2 paragraphs...<p>There are lots of bloated and slow ad networks. It&#x27;s not that they couldnt make faster tech but that it&#x27;s not a priority. Same with publishers who don&#x27;t have enough skills&#x2F;resources to get it done and would rather focus what little they have on making sure the site and ads work in the first place.