how to backup a lot of files very quickely in google pixel 2 xl

I just bought a google pixel 2 xl and I have a lot of files (around 26000 items ) . I started to backup them to google cloud but it is taking too much time. is there any way backup faster.

To the cloud? Not likely, that's limited by your internet connection. What's your old phone? I assume those files are stored on it? The Pixel 2 XL comes with a USB-C to female USB-A adapter that allows you to plug the old phone in for transferring stuff, plus you're prompted to do so during the setup.

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