Question:
my internet is 100mbps..
but it still slow..
does my 100mbps slow or my computer slow??

Best Answer:
Your computer speed doesn’t slow down your connection speed, it slows down the loading of pages.

Run a disk defrag and clean the junk out of your system (www.ccleaner.com)

If all else fails, is anyone uploading on your network (that could kill your speed)?

But the other guys are right, your internet is not 100mbps. That’s your LAN/NIC speed (under best conditions, which rarely happens).