Fit to existing portfolio cannot possibly be right: two bugs found

BUG #1 FALSE POSITIVES: I have only 1 strategy in my results tab which is also the target for the correlation check, how could 20% of newly generated (COMPLETELY RANDOM as the init pop isn't even filled yet) strategies possibly be >0.9 correlated to Daily PL with this one strategy? Not even 10% of new randomly generated strategies are profitable let alone 20% being correlated to this one strategy! 

BUG #2 CORRELATION FILTER IS AN INIT POP FILTER INSTEAD OF RANKING FILTER: The correlation check is probably the most resource-demanding check, it should probably be the last check made after all the ranking filters have already been checked... (thankfully this bug existed and allowed us to spot the first bug easier though lol.)  In fact, it seems correlation check is being checked as an init pop filter. I think it's better to have strategies correlated with the existing portfolio allowed into the gene pool as they may mutate to something less correlated. We aren't really preventing a stoppage by applying the correlation filter to init pop because a stoppage can still occur in the builder if it can't find any viable genes for the init pop. And ya, should save a lot of CPU / increase build speed. Turning this on cuts my strat per hour down significantly.

It might be cool if the "strategy too similar" filter was configurable.


EDIT:
OK there are some other complaints about the speed with fit to existing portfolio turned on :
https://roadmap.strategyquant.com/tasks/sq4_8261

https://roadmap.strategyquant.com/tasks/sq4_7523


I've been watching the process carefully and reading the related tickets.

What's actually happening with the LOW CPU USAGE is that during the initial fill stage when no islands are full yet CPU is still using 100% BUT the islands take 10x as long to fill up (because of a double whammy: there are false positives as I've shown in my screenshot above AND because the correlation filter is incorrectly used as a init pop filter instead of a ranking filter.) CPU usage does eventually drop to 50% when only one or two or three islands are actually full (which, once the first island actually finally fills, is often. It might take 30 minutes or 60 minutes to get there but it drops to 50% once the first island is completely full)