Aurora R14, slow and internet does not work

cloning your old hard drive to your new computer is not something I would recommend.  It's best to have a clean install and install apps from scratch and do a clean data transfer.  Yes, it's time consuming but it also ensures you have a clean install with no driver issues.  it's likely that your cloned hard drive will show many devices with no correct drivers installed.  Look under device manager in the computer management view.

You should never have cloned it. You are using the wrong drivers, chipset drivers from your previous system. That is why you have poor performance and things don’t work. If your system shipped with Windows 11 and you cloned a Windows 10 drive, that would make matters even worse.

As the previous poster suggested, you absolutely need to backup any data, format the drive and install Windows 11. If you don’t have a copy of Windows 11, you can download it directly from Microsoft and create a bootable USB stick using the Microsoft Media Creation Tool.

Cloning an old PC and slapping it into a new one and thinking you're good to go isn't going to work the way you want it. Your poor performance and things not working is because of that

ALIENWARE AURORA RYZEN™ EDITION R14 GAMING DESKTOP is not going to have same chipset or design as an old PC.  Cloning is not supported by Microsoft or Dell. This is the policy for decades since WINDOWS NT from 1995.

Microsoft policy for Cloning windows installations 

systems that are prepared by using the Sysprep utility and then imaged are supported.

• Windows NT Workstation 4.0
• Windows NT Server 4.0 (stand-alone server, not primary domain controllers or backup domain controllers)
• Windows 2000 Professional
• Windows 2000 Server (must be imaged before you run DCPromo)
• Windows 2000 Advanced Server
• Windows XP Home Edition
• Windows XP Professional
• Windows Server 2003, Standard Edition
• Windows Server 2003, Datacenter Edition
• Windows Server 2003, Enterprise Edition
• Windows Server 2003, Web Edition
• All versions of Windows Vista
• All versions of Windows Server 2008
• All versions of Windows 7
• All versions of Windows Server 2008 R2
• All versions of Windows 8
• All versions of Windows Server 2012
• All versions of Windows 10 / 11
• All versions of Windows Server 2016
• All versions of Windows Server 2019
• All versions of Windows Server 1903
• All versions of Windows Server, version 1909

That will not work properly. You cannot clone from one PC to another PC, unless they are both identical systems with identical hardware.

I am surprised it booted in the first place. Since you hopefully kept the original PC, you should have a backup of the cloned system you put on your R14 with all the data on it.

I would suggest to ensure you have a full backup of all your data, and reinstall the original OS for your R14.

Please follow these steps to ensure you get all the proper software and drivers for your R14: Factory installation Windows 10/11 

When I read what the OP did, I too was quite surprised the R14 booted at all.

Actually, I'm not surprised that a cloned win 10 disk would boot up in another completely different computer.  There's enough base driver functionality that it'll boot but be missing a lot of the chipset and misc drivers specific to the new box.  Though it boots, trying to resolve all the driver conflicts will leave wierd artifacts in the installation where it's just better to start from scratch.

I did the usb thing and it is like new except the internet still doesn't work, it says I need to use ethernet

I reinstalled windows 10 and it works fine now

Okay so I just re-installed windows 10 and now everything works fine