Slow Display With Large Dataset

[cptkoolbeenz]

When collecting a “large” set of samples (for example 100,000), the interactive display of logged data gets extremely slow, to the point of not being useable.

[tylerkron]

Closed by PR #467. Sessions with 18M+ samples now load in <3s via two-phase progressive loading (100K instant + 3000 sampled index seeks). Interactive pan/zoom runs at 60fps using viewport-aware MinMax downsampling. Zooming in triggers async high-resolution DB fetch for full fidelity.