Hi Abtin,
1
Thank you for that information, your second screenshot indicates that only 1% of your network capability is being used, the bandwidth does not look to be full.
2
Open the Settings App
Go to Update and Security- Delivery Optimization
Turn off Delivery Optimization and go into its advanced settings and make all values in there to their minimum.
Then you need to delete the updates that Delivery Optimization is uploading to the Internet.
Open File Explorer
Click on your hard drive
On the Manage Tab - Disk Tools, click Cleanup
Let Disk Cleanup do its initial scan
Select Everything in the list and choose Delete
Start Disk Cleanup again
Let Disk Cleanup do its initial scan
Important - this time in the resulting dialog, click 'Cleanup System Files'
Let Disk Cleanup run another scan
Select Everything in the list and choose Delete