Sluggish | Toy CPU and GPU implementations | GPU library

I am making a desktop application using kivy & kivymd and when creating the settings screen for the app I used two MDRectangleFlatButon and MDRaisedButtons but to make them scalable, I gave both of them a size_hint_x of .5 for each to take up half of the screen. However, as soon as the program starts I get this warning from kivy:

I experienced an extremely sluggish refresh time after adding Tailwind to my small Next project. I initially thought it was my device.

I am trying to format a number input so that I am able to display trailing zeros when necessary which is not possible by default. So I tried to overwrite the [ngModel] binding with a function according to this question and ended up with something like this:

I want to write something like this, but it won't compile due to a mismatch between types:

I have two tables. Tracks and metadata. Tracks can have multiple metadata attributes, but metadata can only be attached to a single track. The metadata table has a foreign key for a track ID, but the tracks table has no foreign keys for metadata. I am trying to find the best way to get this result:

Below is a reprex of the data I'm working with. The geom_segment calls make the rendering very sluggish. Is there an alternate way to achieve the same result more quickly?

I am doing some parallelization for a school assignment. Converting pictures to grayscale. But ever since I implemented multiprocessing.Array, I am getting terrible results. Even worse with increasing number of processors.

The speed was fine and as expected, when I was inputing the results into numpy array (but obviously I did not get a valid picture with that). But ever since I switched to the mp Array, it got this sluggish, but I got nice grayscale pictures from it.

I also tried implementing this with processexecutor, but it froze when I passed the mp Array as an argument (did not even reach pid print which was on the first line of the called function)

The Code:

I have a pretty big table in one of my Vue.js component. I want the current line and column to change color when the mouse is hover a cell.

For the row hover effect, it's pretty easy in CSS. But for the column, I have to do it in javascript (for various reason, I cannot use this trick in my current app).

Now, my problem is that using vue.js reactiveness to do this gets pretty slow when the table is too big. See the included snippet (I recommend opening it in full page) where the row hover effect is pretty reactive (done in CSS) and the column hover effect is very sluggish (done with vue.js).

I guess my solution is far from being the best so my question is: Is there a solution to get the column hover effect to be (almost) as reactive as the line hover effect ?

I have a chart, and want to update it every 0.1 seconds. It seems to work, but right away after 100 updates or so it starts to get very sluggish and update very slowly, even though the data being plotted is the same.

Here is a code that illustrates the issue: