ssh – I have a keyboard shift problem on my iPhone getting

If it's the wrong place to post this, I'm sorry, tell me where you want to go.
But here is my problem.
When I use an app called Termius on iOS for ssh on my different machines, I start having a serious keyboard delay, have already tried to reset the dictionary and have restarted my phone. Does anyone have an idea of ​​what is happening here? I would not have wasted time asking this silly question, but it's annoying.