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Asked: 2026-05-14T14:44:10+00:00

I am using django to build an app that is slightly heavy on functionality.

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I am using django to build an app that is slightly heavy on functionality. Consequently my templates are a bit heavy (nested loops, if conditions etc). I am noticing that 70% to 80% of time is spent in render_to_response step of my views.
I haven’t found anything indicating performance issues around template engine in django on google. Anyone here faced similar issues / any suggestions to solve this problem?

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1 Answer

  1. Editorial Team

    One thing to keep in mind is that QuerySet objects are lazy. They won’t actually hit the database until you a perform an operation that requires the query to be executed (looping, counting, etc).

    If you pass a QuerySet object in your template context, often a loop (or some other operation) inside your template will be what triggers the database call. When this happens, the template rendering is “penalized” for the database I/O, but the overall response time should be unaffected by whether it happens in the view or in the template rendering.

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