This started for me with 6.31 and is still in 6.32. If I don't use the speed limiter, my download speed is usually between 29Mbps and 30Mbps (which is the speed of my cable connection). Pre-6.31 versions I had my Speed Limiter in Options/Network set to 20Mbps and that worked great. My downloads would usually hover around that speed.
However since 6.31 and now 6.32, If I turn on the Speed Limiter, my download speed ranges from 7Mbps to 15Mbps. It fluctuates every couple of seconds. One second it will be at 8Mbps, then the next at 12Mpbs. Before with the Speed Limiter turned on and set to 20Mpbs, it would always stay around that speed.
If I go into Options and change the Speed Limiter to 40Mbps, then I can get it closer to 20Mpbs when I turn it on but it still fluctuates over a wide range of speed.
If I turn it off, then NewsBin runs at my full cable speed (30 Mbps).
Something is broken in the newer version when it comes to Speed Limiter. I have been a registered user forever and I always use Speed Limiter but I have never seen it behave this way before.