[Haskell-cafe] Aeson memory use

Hello Cafe, Recently while trying to optimize some code, I noticed that aeson requires quite a substantial amount of memory when parsing map-like structures. The quick example I crafted [1] is quite surprising. In order to parse an 11 megabyte file aeson requires around 300 megabytes of memory (according to the heap profiler), and the total memory footprint (according to htop) jumps to around 700 megabytes. Is there a way to reduce this number to something less insane? I suspect that I might be doing something wrong here, but I can't exactly see what. [1] https://github.com/greydot/aeson-example