As I mentionned, we haven't planned on making big changes on this software, unless bugs are reported.
We have worked to release a version of Daslight4 that would be as stable as possible.
Now this resource consumption problem you are reporting takes a lot more than small bug fixes, but would imply big parts of the software to be rewritten. This would put at risk the stability of our software, which of course is out of the question.
Be assured that we have taken notice of your feedback and we'll make sure to work on it for next releases, as long as it doesn't affect our software's stability in a wrong way.
On that note, I wish you a good day.
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