Powershell - Why is Using Invoke-WebRequest Much Slower Than a Browser Download?

I use Powershell's Invoke-WebRequest method to download a file from Amazon S3 to my Windows EC2 instance.

If I download the file using Chrome, I am able to download a 200 MB file in 5 seconds. The same download in PowerShell using Invoke-WebRequest takes up to 5 minutes.

Why is using Invoke-WebRequest slower and is there a way to download at full speed in a PowerShell script?