[Bug]: There is a significant loss of performance in the browser when downloading

[Muxamed241]

Version

Version 0.8.5.1 (официальная сборка, Chromium 144.0.7559.132) (64 бит)

Have you tested that this is not an upstream issue or an issue with your configuration?

• I have tried reproducing this issue in Chrome and it could not be reproduced there
• I have tried reproducing this issue in ungoogled-chromium and it could not be reproduced there
• I have tried reproducing this issue in Helium with a new and empty profile using --user-data-dir command line argument and it could not be reproduced there

Description

When downloading (as I understand it, large files), there was a significant loss of performance in the browser (I only felt lags in the browser, I didn’t see them on the desktop).When you pause the file download, the lags suddenly stops.

How to Reproduce?

1. Try downloading a large file. I downloaded a custom system for my brother's phone from here: https://www.pling.com/p/2161468/
2. Wait until it starts lagging.

Actual behavior

I use the tar.xz version, I also tried appimage (0.8.3.1).I also tried disabling all extensions. I also tried creating a new profile in the browser. Nothing changed.
I also tried loading files using librewolf flatpak, but there was no such problem there.
Here is a link to the videos I filmed.
https://drive.google.com/drive/folders/1StLR-Uu3L-djrZB_h-bDvHMIZAfB7-Zg?usp=sharing

Expected behavior

There clearly shouldn't be such lags.

Additional context