Video Performance Diagnosis

Diagnose why this video underperformed:

Video details:
- Title: {{title}}
- Thumbnail description: {{thumbnail}}
- Views: {{views}} (expected: {{expected_views}})
- CTR: {{ctr}}
- Retention: {{avg_retention}}

**Step 1: Traffic Source Analysis**
Where did views come from?
- If low browse: CTR problem
- If low search: SEO problem
- If low suggested: Retention problem

**Step 2: CTR Diagnosis**
If CTR is low ({{ctr}} vs benchmark):
- Title weakness analysis
- Thumbnail weakness analysis
- Topic appeal assessment

**Step 3: Retention Diagnosis**
If retention is low ({{avg_retention}} vs benchmark):
- Hook effectiveness
- Content delivery issues
- Pacing problems

**Step 4: Root Cause Identification**
Primary issue:
Secondary issues:

**Step 5: Fix Recommendations**
- Immediate fixes (title/thumbnail swap)
- Learnings for future videos
- A/B test suggestions