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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
The issue of cpu usage has been closed as fixed on their GitHub, so it may be that they have fixed it as much as they can but there's a fundamental tech choice issue.
I use PoESkillTree to export PoB trees as a full resolution jpg. If you get a crash while importing just delete all skill gems and items beforehand (without saving PoB). And before you ask, the PoB developers have said they are not planning to implement this.
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