I use my iPad Pro, a lot. I do not use an external keyboard, only the glass keyboard. I type a fair amount on the glass keyboard.

Tips:

Try using voice dictation. Not for everyone, but the microphone icon is right there in the glass keyboard.

Two fingertips on the glass keyboard turns it into a trackpad, you can quickly move the cursor around in a block of test. Text selection and relocation also possible.

The iPad user interface is multi-touch. Many people never realize all the things that can be done using gestures and more than one finger on the screen.

Always update to the most current iOS version and app updates. Apple is continually refining and improving various aspects of the software. As are third party apps