You pay for a symmetric 1 Gbps (1,000 Mbps) high-speed fiber connection, speed tests show 940 Mbps upload, yet when you upload a 20GB video file into Google Drive in Chrome, the speed crawls at an agonizing 15 Mbps to 25 Mbps. This disparity is not your internet provider's faultβit is caused by browser TCP sliding window limitations, tiny 8MB chunk sizes, and unoptimized congestion control algorithms.
To unlock full gigabit speeds on Google Drive: (1) Enable the QUIC (HTTP/3) protocol in your browser (chrome://flags/#enable-quic) to eliminate TCP head-of-line blocking; (2) Use multi-threaded chunk uploaders like SaveInDrive or rclone with --drive-chunk-size 128M; (3) Increase parallel transfer streams to saturate multi-core network interfaces.