Font selection takes long to load and resulting list is incomplete about imaginary-teleprompter HOT 4 OPEN

Font selection dropdown has a little delay, limitation by CKEditor, but the loading is almost instantaneously on Windows 10 and macOS Catalina & Big Sur. Also the font selection loads all the fonts.

Note: The system fonts wasn't tested on Linux, maybe there's a limitation with the Electron dependencies.

Version: beta-v

OS: Windows 10 Pro 2004 (Build 19041.928)
CPU: AMD Ryzen 7 3750H

OS: macOS Catalina 10.15.7
CPU: Intel Core i9 2.4 GHz 8-Core

from imaginary-teleprompter.

There may have been way too many fonts installed on my system... After removing nearly 500 mb of font files I rarely used, load time went from around one and a half minutes to 7 seconds. Fonts continue to stop loading on the same font, meaning the max number of loadable fonts may still be exceeded or there may be a different reason for it stopping at that location.

I've noticed before that Linux takes longer to load fonts than Windows and macOS. Nevertheless, load times are still an order of magnitude higher on Imaginary Teleprompter compared to various other applications. The good thing is the issue is insignificant when you don't have an exorbitant amount of fonts on your system. Therefore, this may be a low priority bug.

@va2ron1, how many fonts have you got installed on your Windows and macOS systems? I have 1072 fonts installed on the Linux box in question.

from imaginary-teleprompter.

@Cuperino on the Mac with Catalina I have 508 fonts and 249 on Windows

from imaginary-teleprompter.

I suspect font loading under Linux or font loading in general does something that makes it O(n²) in complexity. The reason I think this is I only removed about a third of the size of fonts in my system, and loading time went down by nearly 80%. Will move Linux fonts to Windows and do further testing there.

from imaginary-teleprompter.