diff --git a/piker/ui/_chart.py b/piker/ui/_chart.py
index 8a95327f..f6fc44ec 100644
--- a/piker/ui/_chart.py
+++ b/piker/ui/_chart.py
@@ -1268,9 +1268,9 @@ class ChartPlotWidget(pg.PlotWidget):
 
         '''
         profiler = pg.debug.Profiler(
-            msg=f'`{str(self)}.maxmin()` loop cycle for: `{self.name}`',
+            msg=f'`{str(self)}.maxmin(name={name})`: `{self.name}`',
             disabled=not pg_profile_enabled(),
-            gt=ms_slower_then,
+            ms_threshold=ms_slower_then,
             delayed=True,
         )
 
diff --git a/piker/ui/_interaction.py b/piker/ui/_interaction.py
index a2c99e38..b2b46050 100644
--- a/piker/ui/_interaction.py
+++ b/piker/ui/_interaction.py
@@ -762,7 +762,7 @@ class ChartView(ViewBox):
         profiler = pg.debug.Profiler(
             msg=f'`ChartView._set_yrange()`: `{self.name}`',
             disabled=not pg_profile_enabled(),
-            gt=ms_slower_then,
+            ms_threshold=ms_slower_then,
             delayed=True,
         )
         set_range = True
@@ -833,7 +833,7 @@ class ChartView(ViewBox):
 
             ylow, yhigh = yrange
 
-            profiler(f'maxmin(): {yrange}')
+            profiler(f'callback ._maxmin(): {yrange}')
 
             # view margins: stay within a % of the "true range"
             diff = yhigh - ylow
@@ -932,8 +932,8 @@ class ChartView(ViewBox):
             # due to the way delaying works and garbage collection of
             # the profiler in the delegated method calls.
             delayed=False,
-            # gt=3,
-            gt=ms_slower_then,
+            ms_threshold=6,
+            # ms_threshold=ms_slower_then,
         )
 
         # TODO: a faster single-loop-iterator way of doing this XD
@@ -958,9 +958,7 @@ class ChartView(ViewBox):
                     use_vr=True,
 
                     # gets passed down into graphics obj
-                    profiler=profiler,
+                    # profiler=profiler,
                 )
 
-                profiler(f'range change updated {chart_name}:{name}')
-
-        profiler.finish()
+                profiler(f'<{chart_name}>.update_graphics_from_flow({name})')
diff --git a/piker/ui/_ohlc.py b/piker/ui/_ohlc.py
index 328d62b9..6199b9ea 100644
--- a/piker/ui/_ohlc.py
+++ b/piker/ui/_ohlc.py
@@ -170,7 +170,7 @@ def gen_qpath(
     profiler = pg.debug.Profiler(
         msg='gen_qpath ohlc',
         disabled=not pg_profile_enabled(),
-        gt=ms_slower_then,
+        ms_threshold=ms_slower_then,
     )
 
     x, y, c = path_arrays_from_ohlc(
@@ -353,7 +353,7 @@ class BarItems(pg.GraphicsObject):
     #     '''
     #     profiler = profiler or pg.debug.Profiler(
     #         disabled=not pg_profile_enabled(),
-    #         gt=ms_slower_then,
+    #         ms_threshold=ms_slower_then,
     #         delayed=True,
     #     )
 
@@ -718,7 +718,7 @@ class BarItems(pg.GraphicsObject):
 
         profiler = pg.debug.Profiler(
             disabled=not pg_profile_enabled(),
-            gt=ms_slower_then,
+            ms_threshold=ms_slower_then,
         )
 
         # p.setCompositionMode(0)