Ladsgroup added a comment.
I did a quick performance profiling using chrome devtools and 4x CPU slowdown: In 900ms of scrolling, in the status quo we have: F34123753: image.png <https://phabricator.wikimedia.org/F34123753> With the path applied we have: F34123749: image.png <https://phabricator.wikimedia.org/F34123749> What does it mean: - Currently, in every second of scroll, the cpu is 8ms idle but with sticky position it spends 525ms idle. - But it's not just twice faster cpu-wise, it also handles twice more scroll events (from ~30 to ~60) meaning it renders more lively to users. - It basically means it's four times faster. TASK DETAIL https://phabricator.wikimedia.org/T274569 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Ladsgroup Cc: Lucas_Werkmeister_WMDE, Lydia_Pintscher, Ladsgroup, ItamarWMDE, Michael, Aklapper, Jdlrobson, Mengs21, Alter-paule, EgbeRef, Beast1978, Un1tY, Vaibhav0199, Akuckartz, Hook696, Tinzawoo533, darthmon_wmde, Kent7301, Onmir, joker88john, DannyS712, CucyNoiD, Nandana, Gaboe420, Mh-3110, Amorymeltzer, Giuliamocci, Cpaulf30, Lahi, Gq86, Af420, Bsandipan, GoranSMilovanovic, Jayprakash12345, QZanden, enigmaeth, rohitt, LawExplorer, Lewizho99, Maathavan, _jensen, rosalieper, Scott_WUaS, Jonas, Dixtosa, Verdy_p, Wikidata-bugs, aude, Dinoguy1000, Jdforrester-WMF, Addshore, Mbch331, Rxy, Jay8g
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