Benchmarks for SVAR React DataGrid with 1,000 - 5,000,000 rows and the enabled scenarios None, Sort, Filter, Heights, 400 additional columns and Printable. Mutation benchmarks use the public bulk grid update API; undo history is disabled. Mutation times include API application and totals. Scroll measures 100 requests from position change through correct rows/layout and a rendering opportunity, identically for native and scaled scrolling; no artificial waits or GPU presentation measurement.