diff --git a/web/components/admin/CurrentVariantsTable.tsx b/web/components/admin/CurrentVariantsTable.tsx
index d6d67c813..b61a5f454 100644
--- a/web/components/admin/CurrentVariantsTable.tsx
+++ b/web/components/admin/CurrentVariantsTable.tsx
@@ -151,7 +151,9 @@ export const CurrentVariantsTable: FC = () => {
       dataIndex: 'cpuUsageLevel',
       key: 'cpuUsageLevel',
       render: (level: string, variant: VideoVariant) =>
-        !level || variant.videoPassthrough ? 'n/a' : ENCODER_PRESET_TOOLTIPS[level].split(' ')[0],
+        !level || variant.videoPassthrough
+          ? 'n/a'
+          : ENCODER_PRESET_TOOLTIPS[level]?.split(' ')[0] || 'Warning: please edit & reset',
     },
     {
       title: '',
diff --git a/web/components/admin/VideoVariantForm.tsx b/web/components/admin/VideoVariantForm.tsx
index 742f6eed8..4a9fcfbc2 100644
--- a/web/components/admin/VideoVariantForm.tsx
+++ b/web/components/admin/VideoVariantForm.tsx
@@ -159,8 +159,8 @@ export const VideoVariantForm: FC<VideoVariantFormProps> = ({
               <Slider
                 tipFormatter={value => ENCODER_PRESET_TOOLTIPS[value]}
                 onChange={handleVideoCpuUsageLevelChange}
-                min={1}
-                max={Object.keys(ENCODER_PRESET_SLIDER_MARKS).length}
+                min={0}
+                max={Object.keys(ENCODER_PRESET_SLIDER_MARKS).length - 1}
                 marks={ENCODER_PRESET_SLIDER_MARKS}
                 defaultValue={dataState.cpuUsageLevel}
                 value={dataState.cpuUsageLevel}
diff --git a/web/utils/config-constants.tsx b/web/utils/config-constants.tsx
index f71411622..42710bc3e 100644
--- a/web/utils/config-constants.tsx
+++ b/web/utils/config-constants.tsx
@@ -424,16 +424,16 @@ export const VIDEO_BITRATE_SLIDER_MARKS = {
 // VIDEO VARIANT FORM - encoder preset
 // CPU
 export const ENCODER_PRESET_SLIDER_MARKS = {
-  1: {
+  0: {
     style: {
       marginLeft: '15px',
     },
     label: <p>lowest</p>,
   },
+  1: '',
   2: '',
   3: '',
-  4: '',
-  5: {
+  4: {
     style: {
       marginLeft: '-15px',
     },
@@ -441,11 +441,11 @@ export const ENCODER_PRESET_SLIDER_MARKS = {
   },
 };
 export const ENCODER_PRESET_TOOLTIPS = {
-  1: 'Lowest hardware usage - lowest quality video',
-  2: 'Low hardware usage - low quality video',
-  3: 'Medium hardware usage - average quality video',
-  4: 'High hardware usage - high quality video',
-  5: 'Highest hardware usage - higher quality video',
+  0: 'Lowest hardware usage - lowest quality video',
+  1: 'Low hardware usage - low quality video',
+  2: 'Medium hardware usage - average quality video',
+  3: 'High hardware usage - high quality video',
+  4: 'Highest hardware usage - higher quality video',
 };
 
 export const ENCODER_RECOMMENDATION_THRESHOLD = {