diff --git a/rfg_adc_plotter/gui/pyqtgraph_backend.py b/rfg_adc_plotter/gui/pyqtgraph_backend.py
index abc702e..0b1a8ac 100644
--- a/rfg_adc_plotter/gui/pyqtgraph_backend.py
+++ b/rfg_adc_plotter/gui/pyqtgraph_backend.py
@@ -683,6 +683,7 @@ def run_pyqtgraph(args) -> None:
 
     def update() -> None:
         nonlocal peak_ref_window, status_dirty
+        norm_display_scale = 500.0
         if peak_calibrate_mode and any(edit.hasFocus() for edit in c_edits):
             return
         if peak_search_enabled and peak_window_edit is not None and peak_window_edit.hasFocus():
@@ -720,12 +721,17 @@ def run_pyqtgraph(args) -> None:
                 curve_calib.setData([], [])
 
             if runtime.current_sweep_norm is not None:
-                curve_norm.setData(xs[: runtime.current_sweep_norm.size], runtime.current_sweep_norm, autoDownsample=True)
+                norm_display = runtime.current_sweep_norm * norm_display_scale
+                curve_norm.setData(xs[: norm_display.size], norm_display, autoDownsample=True)
             else:
                 curve_norm.setData([], [])
 
             if fixed_ylim is None:
-                y_series = [runtime.current_sweep_raw, displayed_calib, runtime.current_sweep_norm]
+                y_series = [
+                    runtime.current_sweep_raw,
+                    displayed_calib,
+                    (runtime.current_sweep_norm * norm_display_scale) if runtime.current_sweep_norm is not None else None,
+                ]
                 y_limits = compute_auto_ylim(*y_series)
                 if y_limits is not None:
                     p_line.setYRange(y_limits[0], y_limits[1], padding=0)