We explicitly built Element X to be competitive with Telegram's UX - I'm guessing that the feedback here is on the crusty old Element Classic app, which hasn't been touched for 3 years now, and definitely did feel like a laggy MSN by comparison.
Meanwhile Element X feels really really good - especially on iOS, but also Android has improved loads in the last few months (after tweaking the rustc ARM compilation flags properly, doh)
Thank you for your work. For my money there is literally nothing that free computing needs more right now than a consumer-ready open standard for encrypted IM. Matrix has been the obvious candidate for a decade. Let's get there.