diff --git a/README.md b/README.md
index 0a2fad1..e374051 100644
--- a/README.md
+++ b/README.md
@@ -3,17 +3,7 @@
 The most featureful termiminal audio visualizer I'm aware of.
 
 `vizzzz` is a responsive terminal spectrum visualizer written in Rust with
-ratatui. It listens to audio already playing on the host; it never plays or
-generates audio itself.
-
-The default presentation follows After Effects' Audio Spectrum effect: a
-centered path, Side A & B response, dense Analog Lines, hue interpolation, and
-a soft secondary glow. `--display analog-dots` and `--display digital` match
-AE's other display options; the original meter remains as `--display bars`.
-Its spectral preset uses 64 linearly spaced, non-overlapping max-peak bands from
-20 Hz to 2 kHz so individual tones create the distinctive isolated spikes seen
-in AE. Use `--frequency-scale log --detector rms` for the smoother conventional
-analyzer response.
+ratatui.
 
 On macOS and Windows, the default source is the main system output through
 ScreenCaptureKit or WASAPI loopback. On other platforms, and with
@@ -361,40 +351,3 @@ cargo run --release -- \
   system output.
 - Bluetooth headset microphone profiles often run at 16 kHz. Use system output
   or a higher-rate interface for a full-width music spectrum.
-
-## Performance
-
-The realtime capture callback processes host-delivered chunks through fixed
-4096-frame scratch storage and a wait-free SPSC ring; it does not wait for 4096
-frames to accumulate. The queue is capped at 4096 frames (85 ms at 48 kHz), and
-the UI drains it completely each frame, preventing an extended terminal stall
-from accumulating an unbounded stale-audio backlog. FFT scratch, sample history,
-band maps, harmonic routes, phase history, temporal envelopes, adaptive
-references, classification layers, and effect workspaces are all allocated
-during startup or a band-count change. Ripple events, tempo history, and phase
-scope samples use fixed-size arrays. A regression test verifies that 100
-maximal steady-state DSP updates perform zero allocations.
-
-Criterion results on this host's Apple M4 Pro:
-
-| Pipeline | Time |
-| --- | ---: |
-| 4096 FFT, 64 peak bands | 7.46 us |
-| Maximal spectral effect and analysis stack | 10.55 us |
-| Stereo pair, two complete FFT pipelines | 15.67 us |
-| 512-sample lock-free transfer | 44 ns |
-| RustFFT NEON 4096 FFT | 6.64 us |
-| RustFFT scalar 4096 FFT | 15.67 us |
-| 120x40 analog-lines render | 111.1 us |
-| 120x40 advanced Braille circle render | 149.7 us |
-| 120x40 waterfall render | 54.0 us |
-
-RustFFT runtime-selects AVX/FMA on supported x86-64 hosts and NEON on AArch64.
-AVX cannot execute on this Apple ARM host; the measured NEON implementation is
-2.4x faster than scalar. Even the maximal DSP plus the slowest measured render
-uses under 1.0% of a 16.67 ms frame at 60 FPS; terminal transport and emulator
-refresh then dominate. Reproduce the benchmark suite with:
-
-```sh
-cargo bench --bench spectrum -- --noplot
-```