Chromium slow down on published sim

[KatieWoe]

Test device Dell Operating System Win 10 Browser Chrome (and Edge) Problem description On the published sim, the speed of the skater when falling and moving on the track is very slow. It is to the point that it is hard to tell the difference between normal and slow motion settings. Firefox may have a bit of slow down, but not as much.

Visuals

Troubleshooting information:

!!!!! DO NOT EDIT !!!!! Name: ‪Energy Skate Park: Basics‬ URL: https://phet.colorado.edu/sims/html/energy-skate-park-basics/latest/energy-skate-park-basics_en.html?profiler Version: 1.1.19 2020-01-04 13:55:38 UTC Features missing: touch Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36 Language: en-US Window: 1536x722 Pixel Ratio: 2.5/1 WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium) GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 30 uniform: 4096 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32) Max viewport: 32767x32767 OES_texture_float: true Dependencies JSON: {"assert":{"sha":"7d27130a","branch":"HEAD"},"axon":{"sha":"084c71cf","branch":"HEAD"},"babel":{"sha":"722f1732","branch":"master"},"brand":{"sha":"b2c18993","branch":"HEAD"},"chipper":{"sha":"3676ff96","branch":"HEAD"},"dot":{"sha":"33ae235e","branch":"HEAD"},"energy-skate-park-basics":{"sha":"c39248e6","branch":"HEAD"},"joist":{"sha":"8f1daa58","branch":"HEAD"},"kite":{"sha":"24ad131a","branch":"HEAD"},"phet-core":{"sha":"8dcefdcd","branch":"HEAD"},"phetcommon":{"sha":"e31285e4","branch":"HEAD"},"phetmarks":{"sha":"3fdfece0","branch":"HEAD"},"scenery":{"sha":"6e2ab45b","branch":"HEAD"},"scenery-phet":{"sha":"c4caf4df","branch":"HEAD"},"sherpa":{"sha":"2b2bdfd9","branch":"HEAD"},"sun":{"sha":"953074cc","branch":"HEAD"},"tandem":{"sha":"2441eec6","branch":"HEAD"}}

[KatieWoe]

https://github.com/phetsims/QA/issues/470 doesn't seem to have this at first glance

[jessegreenberg]

OK thanks @KatieWoe, good to hear that sim is faster off of master. Many changes to rendering have been introduced since last publication. We will know more about performance of master on our slower devices through https://github.com/phetsims/QA/issues/470, closing this issue.