Hello everyone.

I am performing an IV-Regression with multiple fixed effects. My dataset contains about 20 million observations, with a size of around 3gb.
For this i am running the code:

Code:
ivreghdfe dlunit_price (dlquantity = dlduty_percent), absorb(ct ht cs) cluster(hs6 iso2)
In general my code works and the regression converges after a short amount of time (5-10 minutes). But after it shows me that the regressor converged it takes a long time to display the result. If i am using a bigger dataset it doesn't even display me the result after 12 hours.
So my question is, why does it take so long to show me the results? Or which processes happen after the convergence?

I also checked my computers performance while running the regression but it does not seem to reach its limit.