Lower performance compared to other Chromium-based browsers
Author: brunnopleffkenCreated Jul 30, 2026Updated Sep 7, 2026
This is not a bug report or a feature request, but a legitimate question regarding browser performance.
Why does Ungoogled Chromium show lower performance in Speedometer 3.1 compared to other Chromium-based browsers? Does Ungoogled Chromium have V8 optimizations disabled?
| Browser | 1st run | 2nd run | 3rd run |
|---|---|---|---|
| Brave | 36,6 | 36,7 | 36,6 |
| Google Chrome | 39,2 | 38,6 | 38,9 |
| Vivaldi | 37,8 | 38,2 | 37,5 |
| Ungoogled | 30,5 | 30,1 | 30,7 |
I ran the test three times on an M1 MacBook Pro (w/ Ungoogled installed from Homebrew), testing the browsers in random order and restarting the machine between each run. All browsers had the same extensions installed (uBlock Origin and LanguageTool), but they were all disabled.
Source: ungoogled-software/ungoogled-chromium