diff --git a/resources/ui/gtk3/TVEffect.ui b/resources/ui/gtk3/TVEffect.ui
index f7ef186..cd56c4d 100644
--- a/resources/ui/gtk3/TVEffect.ui
+++ b/resources/ui/gtk3/TVEffect.ui
@@ -2,9 +2,9 @@
 <interface domain="burn-my-windows">
 
   <object class="GtkAdjustment" id="tv-animation-time">
-    <property name="upper">5000</property>
+    <property name="upper">10000</property>
     <property name="lower">100</property>
-    <property name="step-increment">10</property>
+    <property name="step-increment">1</property>
     <property name="page-increment">100</property>
   </object>
 
diff --git a/resources/ui/gtk4/TVEffect.ui b/resources/ui/gtk4/TVEffect.ui
index 8ecf2c4..e7e740b 100644
--- a/resources/ui/gtk4/TVEffect.ui
+++ b/resources/ui/gtk4/TVEffect.ui
@@ -38,9 +38,9 @@
                         <property name="width-request">300</property>
                         <property name="adjustment">
                           <object class="GtkAdjustment" id="tv-animation-time">
-                            <property name="upper">5000</property>
+                            <property name="upper">10000</property>
                             <property name="lower">100</property>
-                            <property name="step-increment">10</property>
+                            <property name="step-increment">1</property>
                             <property name="page-increment">100</property>
                           </object>
                         </property>