is this my wireless card?

I have been having an ongoing problem. I have a Dell Inspiron 560 desktop. I am connecting to the internet wirelessly. I bought the computer with Windows 7 OS, but did the free upgrade to Win 10. What happens is that when I start up, I connect, but a few minutes after I get online, the connection drops…or goes down to a speed of like 6.5 MPS, where everything just kind of hangs in limbo. If I leave it alone, it will usually eventually pick up speed, but it's SO ANNOYING. Is this some sort of failure with my wireless card?  I do not have this same issue when connecting wirelessly via my kindle, so I am thinking it's not the isp or the modem, but something inherent in my desktop.  Any ideas?

According to the Dell support site, your PC has

The driver they supply is very old but I don't see a newer one anywhere. You could try uninstalling it from Device Manager then reboot and let Windows 10 rediscover it and reload the driver, see if that helps.

Alternatively you could add a new WIFI card (PCE-E or USB) and disable the onboard one.

Would I find that info in Network Adapters? Here's what it says:
 

Yes, in Device Manager, under Network Adapters. What's interesting is you show a Linksys AE1000 and not an Atheros Wireless 1525 WLAN Mini Card. Have you added a PCI/PCI-E or USB wireless device?

Try running msinfo32 from the Run box.

Expand Components, Network, Adapter and see what it shows