1. Realty Income's recent underperformance is attributed to higher interest rates, tenant-related issues, and unfavorable lease terms; 2. Despite challenges, free cash flow remains stable and tenants show positive metrics; 3. Realty Income is undervalued with a price-to-AFFO ratio of 13.34x and an intrinsic value of $66.12 per share; 4. The REIT's issues are seen as temporary with expectations of interest rates falling and retail spending recovering.