WD My Passport Ultra Taking Too Much Time

I just purchased a WD My Passport Ultra and am backing up my files for the first time. But it is taking a very long time. Estimated 13 more hours after 20% backed up. Why is it taking so long? I have Windows 10.

What is the name of the application you are using to handle your automatic backups? Your WD Passport Ultra does not run automatic backups on its own without a governing software handling the process.

Your hardware specs directly affect the backup process, and some applications will stop/pause until your computer is idle (This means the backup won’t proceed while you are using your compute).