If you are using a public VPN, Baidu might be blocking that IP address. Switch to a residential proxy or a different VPN node.
The official BaiduPan client imposes per-connection speed limits. However, the file you want to download is stored on one of Baidu’s content delivery servers and has a real, direct download URL (直链). Bypass methods work by intelligently obtaining this direct link, bypassing the speed-control nodes and allowing you to download the file directly from the server at your full internet speed. pan baidu bypass hot