diff --git a/src/main/kotlin/razorvine/c64emu/GUI.kt b/src/main/kotlin/razorvine/c64emu/GUI.kt
index 30af6be..9442962 100644
--- a/src/main/kotlin/razorvine/c64emu/GUI.kt
+++ b/src/main/kotlin/razorvine/c64emu/GUI.kt
@@ -7,7 +7,6 @@ import java.awt.image.BufferedImage
 import java.awt.image.VolatileImage
 import java.awt.event.*
 import javax.swing.*
-import javax.swing.Timer
 
 
 /**
diff --git a/src/main/kotlin/razorvine/c64emu/c64Main.kt b/src/main/kotlin/razorvine/c64emu/c64Main.kt
index a9e4275..e3bbb01 100644
--- a/src/main/kotlin/razorvine/c64emu/c64Main.kt
+++ b/src/main/kotlin/razorvine/c64emu/c64Main.kt
@@ -239,7 +239,7 @@ class C64Machine(title: String) : IVirtualMachine {
     }
 
     fun start() {
-        javax.swing.Timer(10) {
+        javax.swing.Timer(50) {
             debugWindow.updateCpu(cpu, bus)
         }.start()
 
diff --git a/src/main/kotlin/razorvine/examplemachines/GUI.kt b/src/main/kotlin/razorvine/examplemachines/GUI.kt
index d62a0b1..6e6d579 100644
--- a/src/main/kotlin/razorvine/examplemachines/GUI.kt
+++ b/src/main/kotlin/razorvine/examplemachines/GUI.kt
@@ -10,7 +10,6 @@ import java.io.File
 import java.lang.Integer.parseInt
 import java.util.*
 import javax.swing.*
-import javax.swing.Timer
 
 
 /**
@@ -386,7 +385,7 @@ class MainWindow(title: String) : JFrame(title), KeyListener, MouseInputListener
     fun start() {
         // repaint the screen's back buffer ~60 times per second
         var cursorBlink = 0L
-        val repaintTimer = Timer(1000 / 60) {
+        val repaintTimer = javax.swing.Timer(1000 / 60) {
             repaint()
             if(it.`when` - cursorBlink > 200L) {
                 cursorBlink = it.`when`
diff --git a/src/main/kotlin/razorvine/examplemachines/machineMain.kt b/src/main/kotlin/razorvine/examplemachines/machineMain.kt
index 936829a..c783ffe 100644
--- a/src/main/kotlin/razorvine/examplemachines/machineMain.kt
+++ b/src/main/kotlin/razorvine/examplemachines/machineMain.kt
@@ -73,7 +73,7 @@ class VirtualMachine(title: String) : IVirtualMachine {
     }
 
     fun start() {
-        javax.swing.Timer(10) {
+        javax.swing.Timer(50) {
             debugWindow.updateCpu(cpu, bus)
         }.start()