Hey Lakshay, welcome to the community!
This is a common issue with recency boosts in App Search, please refer to these workarounds
Can you share your current mapping and the query you used?
You could potentially wrap your query in a function_score and add a decay function on your date field as another potential workaround.
Read more:
- Function score query
- Decay functions
- Elasticsearch Function Score: Boosting Relevance with Custom Scoring
Hope this helps! Let me know if you get stuck.