The speech during the checklists you mean?
I do notice that it sometimes mispronounces certain items on the list. E.G. in the TBM, the item “Flaps LDG” is pronounced as “Flaps Lodge”. I’m no pilot but I’m sure it needs to be pronounced as “Flaps Landing”.
The speech also goes bonkers if the copilot AI is enabled to handle ATC and they start talking amidst the checklist. Always as soon as the engine has started, the copilot will immediately start requesting pushback. This will entirely halt the checklist, cause a long pause after the pushback request is processed, and cause the copilot to name the last item on the checklist before it turns back to normal again.
These are minor notes though as I digress. I’m mostly just interested in a variable speech speed that can be increased or decreased.