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Simple but effective performance improvements #622
Me and @shunter found some areas of the code that were causing major slow-downs and memory churn. There is still plenty of room for improvement, but these targeted changes help out a lot.
To compare performance, I used Chrome's profiling tools using FAA.czml (available in the website Gallery directory). I found 1800x was a good speed for causing performance problems. Garbage collection goes down significantly, as does the amount of time spent in the above areas of the code.