[Home](./index.md) > [puppeteer](./puppeteer.md) > [Page](./puppeteer.page.md) > [emulateCPUThrottling](./puppeteer.page.emulatecputhrottling.md) ## Page.emulateCPUThrottling() method Signature: ```typescript emulateCPUThrottling(factor: number | null): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | factor | number \| null | | Returns: Promise<void>