Why are most Hindi font converters still slow and ad-heavy?

While building Font Converter Hub, I noticed that many existing Hindi font conversion websites rely on outdated interfaces, intrusive ads, and server-side processing.

Our approach was to make conversions fast, privacy-friendly, and browser-based.

I'm curious:

• What frustrates you most about existing font conversion tools?

• What features are usually missing?

• What would make you switch to a new converter?

Would love to hear everyone's experiences.