Explanation
The reason why querying logs now are very fast is that Indexing Engine indexes logs for faster search results. Indexing Engine is a component of R81 Management that creates and maintains an index of log data, which enables quick and efficient log searches4. The other options are not related to the speed of log querying.
The amount of logs being stored may vary depending on the log retention settings. New Smart-1 appliances may have improved hardware specifications, but they do not affect the log querying process directly.
SmartConsole queries results from the Security Management Server, not from the Security Gateway.
References: 1: HTTPS Inspection 2: Browser-Based Authentication 3: URL Filtering 4: Indexing Engine