[Fixed]-Django Debug Toolbar Target?

By default accessing related model fields results in one extra query per model per row. Look into select_related() and prefetch_related(), this usually cuts down number of queries and speeds things up by a lot. I think debug toolbar shows you the actual queries, if not, need to enable sql logs before doing any query optimizations. Once you cut down number of queries to a minimum (no extra queries per pow), look for the slowest query and use EXPLAIN sql syntax to see if indexes are being used, this is another area where it can get slow especially on big data.

Usually database is the bottleneck, unless you are doing some major looping in your code. If you believe python code is slow, then need to profile it, otherwise it’s just guessing.