If your computer is slow, here are some things you can try to remedy the situation.
You can find out how fast your download and upload speeds really are by doing a speed test online. If the test results look good, check to make sure nothing is downloading or uploading in the background that could be slowing things down.
Checking to see if your network card’s maker has released a new driver and installing it could help speed up your downloads. If nothing is downloading or uploading in the background and the network card hasn’t been updated, you may need to reset the router and modem to fix the problem. It might help to unplug the router or modem’s power cord for 1-2 seconds.
Even if you’re still having trouble connecting, you should call your ISP to find out if the problem is on their end or on yours. If the situation calls for it, your service provider will be able to set up the primary connection again.