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by lucideer 729 days ago
The slow part here is going to be HTML handling.

The comparator - turndown.js - is built on top of domino.js, a mature HTML lib built as a more performance-focused version of Mozilla's DOMJS (an already mature project in itself), so even as slow as NodeJS itself may be, you're running up against some pretty well-crafted libraries in an ecosystem with a long lineage of HTML handling.