With regards to the qunoot of the witr salat, sometimes I feel very robotic (and hence disconnected) when I do the recommendations of doing isteghfar 70 times, asking forgiveness for others 40 times, saying al afw 300 times .. etc
I feel if I just read some other Dua within the qunoot, my presence of heart in the salat would really improve. I know that to read some alternative Dua is allowed, but my question is what would be better from Allah’s (swt) point of view in this case?
Should I continue reading what is recommended, or read something in which I feel a better connection?

Read as if you are speaking to your closest friend without any formalities that’s when the heart is at its best in terms of sincerity