Bear with me a bit while I talk about some networking concepts and history.
Speed is a combination of latency and bandwidth. Latency is how long it take to get from here to there. Bandwidth is capacity.
Let's say you are building a garden in the back yard and have two yards of dirt delivered to your driveway. You can either use a 5 gallon bucket or a wheelbarrow to move the dirt to the garden. You walk at the same pace while carrying a bucket or pushing a wheelbarrow. Your walking pace is latency. The wheelbarrow holds more than the bucket, that is the bandwidth. The job will get done faster with the wheelbarrow because there is more capacity per trip.
Now let's look at some network history. In the early days we used hubs where all the computers plugged into the switch. A packet came in one port and was repeated on all the other ports. Since only one computer at a time can talk, everyone else had to wait until the line was clear before they could talk. Bandwidth stayed the same but latency went up due to wait times. There was also a lot of collisions, which is when more than one computer tried to talk at the same time. This caused both computers to stop talking and wait a period of time and try again. More latency.
Then we invented switches. Switches know what device is on what port. So if device1 needs to talk to device2, that traffic does not interfere with the conversation between device3 and device4. Latency goes down because there can now be multiple conversation going on at the same time. Collisions are close to eliminated.
Then we invented wireless. Now we are back to having a hub. All the devices can hear all the others, but only one can transmit at a time. So now we start having higher latency due to wait times, collisions, and re-transmits. But we also have the added interference from nearby wireless networks from your neighbors, hotspots, some TV and streaming device radios, the wifi toaster, etc...
Wireless also has a lot of extra traffic over a switch due to control traffic. When a wireless device comes on the network, it must join an access point. Once joined, the device will call out to the access point every few seconds. Device: Hey access point, are you still there? Access Point: Yep, still here. Now multiply that by the number of devices on your network. If you are near a wireless network that is using the same channel as you, your devices are also competing with devices on that other network for air time.
tl/dr:
Wired will always out perform wireless, regardless of how much bandwidth the wireless is capable of.