with respect you are way off - as said the cable you have is fine - yes others may have fifferent specs but that does not mean there is anything wrong with yours
I have running from my house to the node a lenght of CAT V not CAT 5E and now industry standards are CAT 6 so it does make a difference
the above shows you really dont understand a thing about external cables
I have a degree in computer sciences and have workd in the telecomuncations industry in the installation of servers so i amfully aware of cables and there limitations.
you have problems with your levels as stated - worry about getting them sorted and leave the rest to those who DO understand