> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blockline.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Performance & Optimization

> Optimize your Blockline API usage for best performance

# Performance & Optimization

Learn how to optimize your API usage for best performance and cost-efficiency.

## Response Times

Average response times:

* **20-100ms** for most endpoints
* Cached responses are faster

## Data Retention

* **15 days** for detailed transaction data
* Older data may be archived or unavailable

## Caching Strategies

The API provides automatic caching:

* **Wallet signatures**: 5-minute in-memory cache
* **Transaction details**: 5-minute in-memory cache
* **Enhanced metadata**: 48-hour Redis cache (automatic)

Leverage these caches to reduce redundant requests and improve performance.

## Time Window Constraints

* **Wallet signatures**: 7-day maximum lookback enforced
* Requests outside this window will be rejected

## RPC Optimization

* Use `hint_signature` parameter for efficient wallet signature fetching
* Batch related requests together
* Use appropriate `slot_range` values (larger ranges = more data)

## Pagination Best Practices

* Use `limit=100` for active markets with high transaction volume
* Implement cursor-based pagination with `before` parameter
* Check `has_more` flag to determine if additional pages exist

<Note>
  **Detailed performance guides coming soon!** Including profiling, batching strategies, and advanced optimization techniques.
</Note>