Easychart with views caching

I have installed easy chart plugin with Drupal 7 website.

My pages are generated with views using nodehierarchy and quick tabs plugin.
To speed up page load, I have enabled views cache.

I noticed easy chart displays while page loads for the first time after cache is cleared. But as soon page speeds up(cached) charts are not displaying.

We have APC cache installed on our website.

Can anyone help with?

Thanks!!!