1. Start downloading any big torrent.
2. Go to Torrent settings, Downloading settings.
3. Set upload and download speed to 5% of you max available internet speed.
Enjoy. Got stable 80-90 ping instead of 105.
Also check my first method
https://www.gta-multiplayer.cz/en/screenshots/100-working-way-to-stabilize-your-ping-and-slightly-increase-fps-any-os/