@bobsilverberg yes, there is another way to workaround. Instead of iterating over all options of select and call on each option `.is_selected()` we can use this hack `select_element.find_element(By.CSS_SELECTOR, 'option:checked'`. I assume this is clean hack that we can use. For instance, I updated one of pull requests like I've just described and won 140 seconds (for two tests). So, I can update this pull request in the same way as well. 

And yes, I agree with you, that  from time to time we need to clean up database. This will increase performance of moztrap-dev and thus will speed up all other tests.

Thanks for review.