Dell has released a new BIOS, version 1.4.0, for the new XPS 15 (9510) that fixes performance issues due to heavy CPU throttling. The new firmware apparently boosts performance by more than 20%.
Beta Channel preview adds OneDrive alerts, fixes high CPU usage, and more
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Build 25252.1010 (KB5021855)
Latest Windows 11 Dev Channel Preview is a servicing pipeline update