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Performance Issues

This page provides solutions for issues related to performance issues that you may encounter while working with Kendo UI widgets.

Slow Execution or Lags

Browser Extensions

Try disabling browser extensions as a first step when facing performance issues.

Most browsers provide a way to temporary disable all add-ons:

Memory Leaks

Browser Memory Usage Increases over Time


There are multiple possible reasons for leaking JavaScript Heap memory. To narrow them down, use the profiling features provided by the browser developer tools. See Memory Diagnosis | Web Tools for a detailed description of the debugging process.

Application Becomes Unresponsive or Hangs

Try disabling extensions as suggested above. If that does not help, see the Browser Memory Usage Increases over Time section above.

See Also

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