Although sometimes it is fine, quickshift is always not so quick. My guess is that one of the hyperparameters settings really slow things down. We need someone to dig into the algorithm and see if they can figure out which parameter is causing the problem. We can tighten the parameter space to avoid the slow values, we just need to know which parameters to tighten. We may also need to just do a parameter sweep on all of the algorithms to make sure there are not others with similar problems.
Although sometimes it is fine, quickshift is always not so quick. My guess is that one of the hyperparameters settings really slow things down. We need someone to dig into the algorithm and see if they can figure out which parameter is causing the problem. We can tighten the parameter space to avoid the slow values, we just need to know which parameters to tighten. We may also need to just do a parameter sweep on all of the algorithms to make sure there are not others with similar problems.