It's very minor, but when it happen many times, it'll be noticable. It's proven because author start the investigation.
It won't be a problem if the tooltip has delayed appearance by 80ms, but it holds the process. So the site will have a 80ms stutter everytime a tooltip appear.
Which generally won't be noticed but it depends on the site. I'm not saying it isn't an issue just that I wouldn't call it a bug. Certainly not something so bad that it would turn you away from web dev. I mean we even have the tooling to track it down fairly easily
It's a bug. I don't care for your semantic separation of issue/bug and neither should you. Pointless distinction for the sake of ego protection. It is unwanted behaviour, therefore a bug.
Alright I guess we will just have to agree to disagree. For me, if an action takes slightly longer than it could take but isn't significantly impacting UX then I don't personally think of that as a bug. Maybe I just don't understand the impact this particular issue had
It won't be a problem if the tooltip has delayed appearance by 80ms, but it holds the process. So the site will have a 80ms stutter everytime a tooltip appear.