I just built a new PC with an Intel Core Ultra 9 285K 3.7 GHz 24-Core Processor and a Gigabyte Z890 AORUS ELITE WIFI7 motherboard. It's running Windows 11, and I've made sure to update the BIOS and all necessary Windows settings. However, I'm experiencing significant lag. Even after optimizing the startup tasks, the menus and windows take a long time to load. I came across some advice about changing the PCIE setting from automatic to 3, as I have options up to 5. I'll share a picture of option 4 and a bench test too.
4 Answers
It looks like you're trying to run Windows from a hard drive instead of an SSD. That’s going to slow things down significantly since a HDD is way slower than a fast SSD. I’d recommend getting a PCIe 5.0 M.2 NVMe SSD like the Samsung 990 EVO Plus and installing Windows on it. HDDs are great for storage but not ideal for running games and programs these days.
You mentioned posting pics; that might help clarify the situation. If your setup shows a 4TB HDD, you'll want to check and make sure you're booting off an SSD. If that's not the case, upgrading to an SSD would make a huge difference.
Your lag issues could be tied to your RAM settings too. Double-check your BIOS for the correct RAM settings to match your parts. Sometimes, motherboards pick slower speed settings by default, which can impact performance.
That setup should rip through anything, so something’s definitely off. Make sure your RAM settings are correct (enable XMP for better performance), check that Windows is installed on a fast SSD, and download the latest chipset drivers from the Gigabyte website. If everything seems right and it's still lagging, you might want to consider a clean reinstall of Windows.

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