Have you tried setting your upstream limit to about 80% of it's max? This should provide enough room for protocol overhead to not become an issue. Setting you upstream limit to unlimited is not recommended as it could saturate your upstream. OK, I tried this, and there was no noticeable difference ...

The problem remains -- I've been looking around this forum, and there are many users with the same symptom: Deluge now works at best at 1/2 the speed of version 0.5 -- and in my case, it's more like one third or one fourth...

Couldn't an option be added, in order to provide the old behavior back? I like Deluge very much, but with its current performance, Deluge is unusable for me, and I'm back to KTorrent.

I did delete all configuration files (see above) and I worked with just ONE or TWO downloads at the same time. I tried both maximizing and minimizing the upload top speed, while keeping the download top speed at the maximum. Perhaps your upstream limit is too restricted and it's causing your downlo...

I did delete all configuration files (see above) and I worked with just ONE or TWO downloads at the same time. I tried both maximizing and minimizing the upload top speed, while keeping the download top speed at the maximum. The best download speed I could get was about a third of what I used to get...

As a further test, I tried setting both the download and upload limits to "maximum", and I could only get the download speed up to 50 kibs -- one third of what I used to get.

Sorry, but I'm not buying this. I deleted all the configuration files after getting such bad results, installed Deluge again, and got the default parameters suggested at the link. I set the maximum connections to 100 (and then even to 50), and the upload speed to 3 maximum, and total speed is still ...

I'm worried by the low, low speed of version 1.0.3. I set Deluge to use up ALL available bandwidth, and it is about 4-5 times SLOWER than version 0.5. What can I change? Usually, with my not-so-great ADSL connection, I managed 150 Kib/s; now I'm barely up to 30 -- a huge step backward! I once even w...