Performance issues when running tests on parallel

[bohdankoshyrets]

When I'm trying to run some UI tests on parallel with a local server on every simulator, those servers are responding very slowly, sometimes response time can be 2-3 seconds, sometimes even more. I'm wondering what can cause such a delay when running tests on parallel, because when running on one simulator, server gives response quickly enough.

[amleszk]

try starting multiple local HTTP servers

[shero-investing]

Still see this issue.
Added a setup in the test suite, to start an HTTP server for each test with a different ports. And response are super slow sometimes :( running tests locally on M1 Pro