diff --git a/bin/effectsequencer b/bin/effectsequencer
--- a/bin/effectsequencer
+++ b/bin/effectsequencer
@@ -39,7 +39,11 @@ class App(object):
     def launch(self, *args):
         self.seq = Sequencer(
             self.graph, lambda settings: sendToCollector(
-                'effectSequencer', self.session, settings))
+                'effectSequencer', self.session, settings,
+                # This seems to be safe here (and lets us get from
+                # 20fpx to 40fpx), even though it leads to big stalls
+                # if I use it on KC.
+                useZmq=True))
 
         self.cycloneApp = cyclone.web.Application(handlers=[
             (r'/()', cyclone.web.StaticFileHandler, {
diff --git a/light9/subclient.py b/light9/subclient.py
--- a/light9/subclient.py
+++ b/light9/subclient.py
@@ -41,4 +41,10 @@ class SubClient:
         except Exception:
             traceback.print_exc()
             return
-        return sendToCollector('subclient', self.session, outputSettings)
+        return sendToCollector('subclient', self.session, outputSettings,
+                               # when KC uses zmq, we get message
+                               # pileups and delays on collector (even
+                               # at 20fps). When sequencer uses zmp,
+                               # it runs great at 40fps. Not sure the
+                               # difference- maybe Tk main loop?
+                               useZmq=False)