For large apps yes; all Sass compile options are slow with embedded Sass being the least slow BUT: Does your tooling even support embedded Sass?! Vite does not

For large apps yes; all Sass compile options are slow with embedded Sass being the least slow BUT: Does your tooling even support embedded Sass?! Vite does not. Our version of webpack does not.. The Cenobites would LOVE Sass; never ending performance pain.