In the April 2024 Compute and Accelerator Forum (https://indico.cern.ch/event/1329688/), the focus is on high-performance IO for high-energy physics. Peter van Gemmeren (ANL) outlines the Storage Optimization work done by the HEP-CCE project; and Vincenzo Padulano (CERN) describes the new ROOT storage format, RNTuple, highlighting its design and the integration with object stores.