I'm having a problem with heat map in QGIS. I have two shapefiles with accidents (with and without victims). Every time I try to create a heatmap with them, it gets pixilated as you can see in the image.
How can I make it smoother and not square, like in this image?
I put another picture with the options. QGIS documentation says the number of rows is connected to the number of columns. By doubling one, the other also increases. I noticed, on other maps I made, that the number of columns is greater than the number of rows. In this shapefile the opposite happens. The number of rows is greater than columns. I think that's what affects the outcome, giving this pixelated appearance. I have already tested various radius sizes (10, 30, 50, 1000, 30000 and others), but the result is always almost the same.
I'm using EPSG:4326 (WGS 84)