Occasional surges in utorrent speed HELP

[flyingpotato666]

So I currently have version 1.8.7 (MAC) and my internet download speed is 50 Mbps (my internet package i mean not utorrent speed) but there is something really wrong with my downloads nowadays. What goes on is that I press stop on downloading the torrent then press start, the speed goes up to 800 kbps then gradually lowers to 1 kbps, then i press stop and start then the same thing happens. So the speed is high for about 10 seconds then it goes back to 1 kbps. (Ive already disabled firewall on utorrent). It was never like this before, this began to happen only when i downloaded the new version, my old version was fine. So i really think its something in the settings since im using torrents that have alot of seeds. My settings:

NETWORK: Port number: 45682, automatically map port (checked)

PREFERENCES: global limit: 500, per torrent limit: 2400, enable distributed hash table (checked) enable peer exchange (checked), encryption (FORCE)

these are the main settings, im guessing the problem is here. Please help i pay alot for fast internet speed, and it is fast when using google or anything else but very slow in utorrent.

Thanks 

 

[DreadWingKnight]

You are using unsupported settings.

[PiusX]

And posting to Mac forum when this is Windows forum... shows lack of following Posting Rules as well...

[flyingpotato666]

2 hours ago, DreadWingKnight said:

You are using unsupported settings.

so how do i change it to supported settings? 

[DreadWingKnight]

You start by resetting your settings to default (~/Library/Application Support/uTorrent - delete settings.dat and settings.dat.old) and then follow