A user takes an iOS-based smartphone to a repair shop due to performance issues.

Comprehensive and Detailed Explanation From Exact Extract:

Running atnear full storage capacitysignificantly slows down smartphones. iOS in particular requires space for caching and temporary files. Performance improves when storage is cleared.

FromMike Meyers ' Lab Manual:

“Lack of free space causes mobile operating systems to struggle with temp files and updates. Performance improves significantly with adequate storage.”