LastPass Vault is slow as a turtle

I've got over 300 passwords and login entries in my Lastpass Vault, opening it in Edge slows down the browser to a point that each scroll has 2 seconds delay, it's painfully annoying. the CPU usage doesn't even go that high.

Version 81.0.363.0 (Official build) canary (64-bit)

I7 7700K CPU, Windows 10 latest version.