@Elliot Kirk Just recently I have noticed the Edge Canary (18.104.22.168) has a slower startup time than Chrome or UWP Edge by several seconds. Not sure if it is just bad optimization or just my computer, but it definitely is a noticeable difference.
I'm not @Elliot_Kirk, but I can likely help in this case. Are you still experiencing the issue? Have you updated to the latest version? Have you tried Microsoft Edge Insider Build Dev Channel?Microsoft Edge Insider Channels - Download