I'm running 6.53 b.3311, accessing newshosting with 30 connections, and using Cox Cable's 100Mbps DL speed.
When speed limiter is turned off, I get a virtually sustained 100Mbps or higher transmission. However, when I activate Speed Limiter, the speed drops to 50Mbps or less, (fluctuating constantly) even though I've set the limit to 70Mbps or higher. (It's limited at 90Mbps at the moment, yet my DL speed is under 40Mbps.)
When I turn off the limiter, DL speed quickly goes up above 100 Mbps (108 Mbps at the moment.)