Windows Server 2012 Performance Troubleshooting

I am seeking a professional skilled in Windows Server 2012 troubleshooting and maintenance, as my server has been experiencing persistent performance issues. Despite attempting to resolve these issues myself, they have only been temporarily fixed.

Ideal candidates should possess:
- Extensive experience with Windows Server 2012
- Strong troubleshooting and maintenance skills
- Ability to identify and rectify performance issues swiftly and efficiently.

I need someone who can help get my server back to optimal performance.