dcc.Loading Component Causes Forced reflow therefore very slow

[chriddyp]

Dash v1.13.3 Release: Improved performance, clientside callback_context, many dcc.Graph & DataTable bug fixes

Update: version 1.16 has been released since this was posted. Dash v1.13.3 is a minor release featuring: Improved performance for applications displaying a lot of components Upgraded Plotly.js from 1.54.1 to 1.54.3. Plotly.js is the library behind the dcc.Graph component. Many bug fixes in here including background color not updating correctly and graphs rendering too small. Added support for callback_context in clientside callbacks #1240 - Thanks to @mrdawson from the community for this …