Mac is really slow to read external drive

hello, i have a late 2012 mac book pro and a seagate 1tb paasport external drive.when i connect my drive to my computer sometimes it takes very long to read the drive right now its going on 5+ minutes and i still cant access my info.i have tested the harddrive on other computers and it boots up instantly or almost instantly.i have also noticced the slowness from time to time when i connect any type of flashdrive or cd wich again seem to work fine on any other device but tend to sometimes not boot up on my computer.is there any fix or possible way to speed up this process ? any recommendations? your help and or suggestions would be highly apprecciated since i do rely on this equipment for work.

Hey chezron,
If you are having slow down issues frequently, then check out the articles below to start with isolating what could be causing the issue. Sometime it could be an application or a process that is constantly running and causing slow down. Another thing could be the memory usage as well, for example if you are multitasking, then the memory may be full.
OS X Mountain Lion: If your Mac runs slowly
http://support.apple.com/kb/PH10798
Runaway applications can shorten battery runtime, affect performance, and increase heat and fan activity
http://support.apple.com/en-us/HT203184
Take care,
-Norm G.

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