Evaluate quick steps

[thesamovar]

It seems that quick steps may make the algorithm take longer overall. This needs to be checked in some real cases, and if so we should change the default to not include quick steps (or maybe even remove the option entirely). We should also check if the same was true for KK1. If not, it might just be the case that the time saved for quick steps is not so important when the algorithms are properly sparse compared to when they are denser (in KK1). Or, there might be an issue with quick steps possibly (but it doesn't seem to be affecting the quality of the results at the moment).