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After upgrading to v10 from 9.5.4, cypress run and cypress open has gone really slow for us.
- We were on 9.5.4. Then did the upgrade to the latest version of cypress 10.3.1
- Now the test execution time takes too long. This appears to occur when loading a page
- Just the cypress package and cypress.config.js file changed. No other change in the test code

Would you might creating a github issue for this? Probably need a bit more information about your specific project. There hasn't been a _general_ slowdown in performance of e2e specs visiting sites that I'm aware of. But a github issue will be a good way to engage the team since what you described does certainly sound like something about the version change is causing a problem in your situation.

<@437702410945953802> Thanks. I have created a github issue https://github.com/cypress-io/cypress/issues/22868 with the code and a bit more information for any advises.