Brave News on NTP consume a lot of CPU

[atuchin-m]

Description

A report from @aseren:

On the MacOS Development build from the fresh master, NTP with News enabled eats more then 50% of CPU core time.

Steps to reproduce

1. launch a browser with a clean profile
2. open NTP
3. enable Brave News
4. open internal task manager (NTP with news should be opened and active)
5. check CPU the avg CPU usage from Tab: New Tab for 10-20 sec

Actual result

More than 20% avg CPU usage

Expected result

About zero CPU usage (< 5%)

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave	1.71.114 Chromium: 130.0.6723.58 (Official Build) (arm64)
Revision	89c4031c685a4296315a6f421f46275f0b72dd55
OS	macOS Version 15.0.1 (Build 24A348)

Channel information

• release (stable)
• beta
• nightly

Reproducibility

• with Brave Shields disabled
• with Brave Rewards disabled
• in the latest version of Chrome

Miscellaneous information

No response

[atuchin-m]

The issue is likely to be related to components/common/useRelativeTime.ts introduced in brave/brave-core#25447

getRelativeTime(time) returns negative values: