Unlike many of the other 1 star reviews here, I'm not having an issue with whether or not the app actually works. It works perfectly fine. The problem is this app causes considerable lag on nearly all websites. I have a high-end PC, and this behavior is observed ONLY when the extension is turned on.

Turning the extension off immediately speeds up any website that uses heavy HTML/JS. I'm assuming the extension scrapes nearly every part of the website to look for a "credit card" field to suggest opening a credit card, but this is heavily taxing on the general speed of the browser.