diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index 754dece..5e80e3a 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -14,6 +14,7 @@
 #include "SDRThread.h"
 #include "DemodulatorThread.h"
 #include "AudioThread.h"
+#include "CubicSDR.h"
 
 wxBEGIN_EVENT_TABLE(AppFrame, wxFrame)
 //EVT_MENU(wxID_NEW, AppFrame::OnNewWindow)
@@ -53,7 +54,7 @@ AppFrame::AppFrame() :
     SetMenuBar(menuBar);
 
     CreateStatusBar();
-    SetClientSize(1280, 400);
+    SetClientSize(1280, 600);
     Centre();
     Show();
 
@@ -186,6 +187,7 @@ void AppFrame::OnAudioInput(wxThreadEvent& event) {
 
 void AppFrame::OnIdle(wxIdleEvent& event) {
 
+    wxGetApp().Yield();
     event.Skip();
 }
 
diff --git a/src/AudioThread.cpp b/src/AudioThread.cpp
index c20b481..66a5691 100644
--- a/src/AudioThread.cpp
+++ b/src/AudioThread.cpp
@@ -111,9 +111,10 @@ wxThread::ExitCode AudioThread::Entry() {
                  break;
                 }
             }
+        } else {
+            this->Yield();
+            this->Sleep(1);
         }
-
-        Sleep(1000);
     }
     std::cout << std::endl << "Audio Thread Done." << std::endl << std::endl;
 
diff --git a/src/CubicSDRDefs.h b/src/CubicSDRDefs.h
index 014245a..6f60220 100644
--- a/src/CubicSDRDefs.h
+++ b/src/CubicSDRDefs.h
@@ -1,6 +1,6 @@
 #pragma once
 
-#define BUF_SIZE (16 * 32 * 256)
+#define BUF_SIZE (16 * 32 * 128)
 #define SRATE 2000000
 #define FFT_SIZE 2048
 
diff --git a/src/DemodulatorThread.cpp b/src/DemodulatorThread.cpp
index 917e0b5..a3944fd 100644
--- a/src/DemodulatorThread.cpp
+++ b/src/DemodulatorThread.cpp
@@ -162,9 +162,10 @@ wxThread::ExitCode DemodulatorThread::Entry() {
                     break;
                 }
             }
+        } else {
+            this->Yield();
+            this->Sleep(1);
         }
-
-        Sleep(1000);
     }
     std::cout << std::endl << "Demodulator Thread Done." << std::endl << std::endl;
 
diff --git a/src/SDRThread.cpp b/src/SDRThread.cpp
index fc7a23c..d5f0824 100644
--- a/src/SDRThread.cpp
+++ b/src/SDRThread.cpp
@@ -1,6 +1,7 @@
 #include "SDRThread.h"
 #include "CubicSDRDefs.h"
 #include <vector>
+#include "CubicSDR.h"
 
 //wxDEFINE_EVENT(wxEVT_COMMAND_SDRThread_INPUT, wxThreadEvent);
 
@@ -159,6 +160,9 @@ wxThread::ExitCode SDRThread::Entry() {
             } else {
                 delete new_buffer;
             }
+        } else {
+            this->Yield();
+            this->Sleep(1);
         }
     }
     std::cout << std::endl << "Done." << std::endl << std::endl;