what is the upload speed?
I am currently getting about 5.9 Mbps, how can I maximize the upload speed?
Airport Time Capsule 802.11ac
Check with your Internet Service Provider to find out what the download and upload speeds of your plan with them might be. You will see that the download speed of your plan is much faster than the upload speed, which is normal.
Post back on your results.
What device are you using to check the Internet connection speeds on your network? What operating system is it using?