🐛 Performance: Optimize vector search latency in TurboMemory

[theihtisham]

Description

Vector search operations in TurboMemory are showing higher than acceptable latency, especially when dealing with large memory stores.

Expected Behavior

Sub-100ms response times for typical vector similarity searches.

Steps to Reproduce

1. Initialize TurboMemory with 10k+ entries
2. Perform a semantic search query
3. Observe latency exceeds 100ms

Motivation

Optimizing this will significantly improve the overall responsiveness of the agent's memory retrieval system.