Severe rendering performance issues with SDL2 in WSL

[daedsidog]

Performance in the SDL2 version in WSL grinds to a halt when the screen is filled with text. Less than a single frame per second is rendered when I just fill my screen with characters. Doesn't happen with the ncurses or Windows version.

I would usually disregard this as a WSL issue (which it probably still is) but other GUI apps are okay (Emacs) and I've tried some other SDL2 programs (at least I think they were) and they were okay.

It's possible it could be a problem with my SDL2_ttf?

OS: Arch Linux on Windows 10 x86_64
Kernel: 5.15.146.1-microsoft-standard-WSL2
Uptime: 12 mins
Packages: 904 (pacman)
Shell: bash 5.2.26
Theme: Adwaita [GTK3]
Icons: Adwaita [GTK3]
Terminal: Relay(12)
CPU: Intel i7-9750H (12) @ 2.591GHz
GPU: c532:00:00.0 Microsoft Corporation Basic Render Driver
Memory: 419MiB / 7871MiB