Performance Guide
From Documentation
Disable Auto Refresh
Notify Change
Ignore Height Calculation
since 3.8.3
If your application doesn't allow users to do any operation that needs a row height calculation e.g. enable / disable wrap text, change a font size, then you can set the attribute ignoreAutoHeight to true. This will improve client side rendering speed much.
<!-- default is false -->
<spreadsheet ignoreAutoHeight="true"/>
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