Figma is an excellent example of performance being a top priority to set themselves apart, since they weren't the only player in town at the time. We had Adobe

Figma is an excellent example of performance being a top priority to set themselves apart, since they weren't the only player in town at the time. We had Adobe Illustrator, XD was still in beta phases, and Sketch for macOS was showing signs of bloat and major performance hangups in any considerably realistic document. Affinity Designer was also coming into the scene with stellar performance, but had a high learning curve and wasn't well suited for interactive prototyping. Figma swooped in and solved 3 problems: 1. Availability in the browser on any platform, where native apps can't reach (and thus 10x easier sharing of documents). 2. Incredible performance on first release through their WebGL renderer, rivaling all of the native apps listed above. 3. Stayed flexible, and yet, barebones enough to get at least 80% of a designer's needs covered initially. Performance (and stability) were primarily what won me over to it, and I'd argue probably the same for many who switched over.