Most home WiFi networks introduce jitter. The Nexus throttle algorithm interprets jitter as a "poor connection" and reduces speed further to prevent file corruption.
The Claim: Using Python scripts (like nxm_downloader.py found on GitHub) that spoof a mobile user-agent to get lower quality compression.
The Reality: These scripts work... for about 20 minutes. They exploit an old "fallback" protocol for the Vortex mod manager. While they can sometimes unlock speeds of 5-6 MB/s (double the free cap), Nexus patches these holes within weeks. By the time you find a script that works, it is likely already dead. Nexus Download Speed Bypass
Mirror sites and proxy servers can act as intermediaries between your device and the Nexus Mods servers. By using a mirror site or proxy server, you can potentially avoid speed throttling and download mods faster. Most home WiFi networks introduce jitter