Some users experienced increased response times on file list operations for approximately 22 minutes. Root cause: database query optimization issue. Resolved by adding compound index.

Multipart uploads over 500 MB timed out for some users. Root cause: proxy timeout misconfiguration. Resolved by increasing timeout limits and improving chunking behavior.

OAuth login was intermittently slow for ~8 minutes due to a token validation bottleneck. Resolved by caching validation responses.