Stubbed requests via cy.request are slow or don't respond at all

[ihor-panasiuk95]

Hey guys! Last 2 weeks I'm learning Cypress and I have the issue with cy.request.
I have just few tests (about 10) and for each test I stub all api calls via cy.request.
And the issue is that randomly tests fail (sometimes 1 test, sometimes 2-3) by timeouts via cypress run. During the investigation and analyzing video and screenshots I see that my app displays loader for a long time although all requests are stubbed and hence it cannot find needed elements.
Increasing of defaultCommandTimeout does not help - tests fail randomly (sometimes pass).
I stub requests in beforeEach/before hooks. Also I noticed that stubbed requests take about 1-2sec in network tab although they should respond instantly.

What that could be?

[ihor-panasiuk95]

Note: via cypress open tests are much stable.