[Bug]: Performance - Notifications - Enabling Notifications takes a significant amount of time (>6 seconds) and disabling it also few seconds (2-3s)

[seaona]

Describe the bug

Enabling Notifications takes a significant amount of time (>6 seconds) and disabling it also few seconds (2-3s). In both cases it takes long:

• If you have the notifications disabled, and click on Notifications, you will enable them from the popup, leaving the popup with the loading spinner
• If you have the notifications enabled, and go to Notifications settings, then you can disabled from there and re-enabeld from there. You will stay in settings with the loading spinner

Expected behavior

This issue can be investigated under the improve performance goal, together with other slow flows that have already been identified

Screenshots/Recordings

perf-notifications-2.mp4

Steps to reproduce

1. Enable Notifications with several accounts in the wallet -- see loading time
2. Disable Notifications for an individual account -- see loading time
3. Disable Notifications for all accounts -- see loading time

Error messages or log output

No response

Version

12.0.0

Build type

None

Browser

Chrome

Operating system

Linux

Hardware wallet

No response

Additional context

No response

Severity

No response

[Prithpal-Sooriya]

TY. Jira Ticket created here. Our team will investigate.

[Prithpal-Sooriya]

This is a challenging one. Will investigate. Initial thoughts are that this is either our encryption key creation process, or API requests we are making.

[Prithpal-Sooriya]

Some performance improvements are found in some PRs (cherry-picked into v12.0.0):
#25946
#25979

However there does still seem to be a slowness in enabling/disabling notifications. Investigations point to the number of API calls required to setup notifications. Discussing with our team to see how we can alleviate these issues.

[Prithpal-Sooriya]

OK so we've improved perfomance such that the actions above don't take any longer than 3 seconds.

Other tickets have been created to further improve performance:
https://consensyssoftware.atlassian.net/browse/NOTIFY-952
https://consensyssoftware.atlassian.net/browse/NOTIFY-953
https://consensyssoftware.atlassian.net/browse/NOTIFY-955
https://consensyssoftware.atlassian.net/browse/NOTIFY-956

I'll remove the regression-prod-12.0.0 tag, but will keep this issue open for our team to track.