=====================Improving performance===================== One of Manim's main flaws as an animation library is its slow performance.As of time of writing (January 2022), the library is still very unoptimized.As such, we highly encourage contributors to help out in optimizing the code. Profiling========= Before the library can be optimized, we first need to identify the bottlenecksin performance via profiling. There are numerous Python profilers available forthis purpose; some examples include cProfile and Scalene. Running an animation as a script-------------------------------- Most instructions for profilers assume you can run the python file directly as ascript from the command line. While Manim animations are usually run from thecommand-line, we can run them as scripts by adding something like the followingto the bottom of the file: .. code-block:: python     with tempconfig({"quality": "medium_quality", "disable_caching": True}):        scene = SceneName()        scene.render() Where ``SceneName`` is the name of the scene you want to run. You can then run thefile directly, and can thus follow the instructions for most profilers. An example: profiling with cProfile and SnakeViz------------------------------------------------- Install SnakeViz: .. code-block:: bash     pip install snakeviz cProfile is included with in Python's standard library and does not need to be installed. Suppose we want to profile ``SquareToCircle``. Then we add and save the following codeto ``square_to_circle.py``: .. code-block:: python     from manim import *      class SquareToCircle(Scene):        def construct(self):            s = Square()            c = Circle()            self.add(s)            self.play(Transform(s, c))      with tempconfig({"quality": "medium_quality", "disable_caching": True}):        scene = SquareToCircle()        scene.render() Now run the following in the terminal: .. code-block:: bash    python -m cProfile -o square_to_circle.txt square_to_circle.py This will create a file called ``square_to_circle.txt``. Now, we can run SnakeViz on the profile file: .. code-block:: bash    snakeviz square_to_circle.txt A browser window or tab will open with a visualization of the profile, which shouldlook something like this: .. image:: /_static/snakeviz.png