MORE ACCURATE DEVTOOLS PERFORMANCE DEBUGGING USING REAL-WORLD DATA

Summary from the TLDR Web Dev newsletter

Chrome DevTools now includes CPU throttling calibration, allowing devs to generate accurate performance presets for low- and mid-tier mobile devices based on their own hardware. This helps simulate real-world user experiences more reliably, especially for CPU-bound tasks. DevTools also integrates field data from CrUX to suggest realistic settings and highlight mismatches between lab and real-user performance.