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---->quote
lots of factor cause it to sow down downloadin/uploading
let me list some..
writing speed of the disk
virus, trojan, malware which causes spam( in the form of anything..
eg: mail) to the internet
busy processors
resistance of the cable( talking about cable which links 100km
etc)
speed limit set by ISP/routers/servers/modem
number of users which connected through the same gateway
