If you face a Windows Server slow performance issue, you can upgrade the hardware, such as Memory or the Processor. More working suggestions here.

Research indicates that it is likely because ISA Alerts rely on Win2K's Performance Logs and Alerts service, which I had previously disabled.

Microsoft says this month's Patch Tuesday cumulative updates also fix a known issue causing Windows Server 2019 boot problems, freezes, and performance issues after installing the August 2024 ...

Microsoft has confirmed and fixed a known issue causing performance issues, boot problems, and freezes on Windows Server 2019 systems after installing the August 2024 security updates.