Using observers in Magento 1.13 can lead to slow loading issues

Sat, 18 Jun 2016 16:02:24 +0000

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For one of the Magento projects I worked on, I had to implement a new action in the dropdown list of actions in the back-end.

I tried the Observer option described in this tutorial: Adding new mass action to admin grid in Magento

However, it slowed down the application because the event I was observing core_block_abstract_prepare_layout_before was triggered too many times. The Sales admin page could take around 5 to 10 seconds to load. I finally opted for the Block override option, much more elegant.

Performance on Laïla Atrmouh

Using observers in Magento 1.13 can lead to slow loading issues