Adding more RAM to a GTM device drastically improves query performance.

This is incorrect because DNS query handling on GTM is CPU-intensive, and additional RAM does not accelerate the lookup, scoring, or response operations that govern query performance.

GTM processes DNS queries primarily through CPU cycles for name resolution, load balancing decisions, and response generation, so RAM is not the limiting resource. Performance bottlenecks in GTM are typically tied to CPU capacity and query concurrency rather than available memory. Increasing RAM will not meaningfully change query throughput or latency under normal operating conditions.