I use chrome and this does not occurs for me.

It's a known issue. The JS is horribly slow in certain OS/browser combinations (Windows + Chrome browser seems to main issue?). I have reported the tooltip issue myself in the old v5 beta bug tracker, but it's not resolved yet.

You can read what @Matt Finger posted in this other bug report about the root cause:

Edited February 25Feb 25 by teraßyte
typo

I just tested the tooltips with Opera and the lag is even worse there: the normal title attribute is first displayed, and only after a few seconds the JS kicks in and replaces the title attribute with _title (underscore) to show the tooltip. 👀

EDIT

Opera One (version: 117.0.5408.39)
Windows 10 64-bit
Chromium Version: 132.0.6834.209

Edited February 26Feb 26 by teraßyte

Will this issue be addressed in version 5.0.4? A lot of users use Chrome, and the experience is poor due to these delays.

I've added this bug report too, just to add context to the other report. There is nothing specific I can see related to 504, but please feel free to check out the beta

53 minutes ago, Marc said:

I've added this bug report too, just to add context to the other report. There is nothing specific I can see related to 504, but please feel free to check out the beta

In the latest beta version, the problem still exists. In the Chrome browser, when I hover over the icons in the header for messages, notifications, or reactions when marking them, and the description appears, there is a significant lag. Try moving the cursor over these buttons, and you will experience the issue.

7 minutes ago, PanSevence said:

In the latest beta version, the problem still exists. In the Chrome browser, when I hover over the icons in the header for messages, notifications, or reactions when marking them, and the description appears, there is a significant lag. Try moving the cursor over these buttons, and you will experience the issue.

Im not on my end on Chrome but I am also using a different version of windows. This is not to dismiss your issue. Im just saying Im not experiencing it myself.

I face this problem as well and it is annoying to a great extent

We have some updates for this upcoming. Wont be 5.0.4 as thats already too far out the door :)

5 hours ago, Marc said:

We have some updates for this upcoming. Wont be 5.0.4 as thats already too far out the door :)

Thanks for the update. At least we know something is coming. 🙃