50% Performance Drop: Why Does single-bandwidth=192Mb/s Only Achieve 80Mb/s in Single-Connection Transfers?

Issue Description:
My current bandwidth provides an upload rate of 160 Mb/s. However, when transferring files via a single connection, the speed caps at 80 Mb/s, even though multi-connection transfers can fully utilize the 160 Mb/s bandwidth.

Configuration Parameters Applied:

• limit-speed: 256 Mb/s
• total-bandwidth: 1024 Mb/s
• single-bandwidth: 192 Mb/s

Expected Behavior:
A single connection should ideally utilize the maximum available upload bandwidth (160 Mb/s).

Observed Behavior:
Single-connection speed is limited to 50% of the expected capacity (80 Mb/s), while multi-connection transfers achieve full bandwidth. This suggests a potential misconfiguration or bottleneck in the single-connection rate-limiting logic.

Request:
Could you help investigate why the configured single-bandwidth parameter (192 Mb/s) does not align with the observed performance? Any guidance on optimizing single-connection throughput would be greatly appreciated.

Start by reproducing the single-connection and multi-connection transfers with the reported limit-speed, total-bandwidth, and single-bandwidth values. Trace the server's single-connection rate-limiting logic and verify how the configured Mb/s values are interpreted; done means explaining the 80 Mb/s cap or identifying the configuration or implementation issue causing it.