Oh man, how do I tell if this is why I think my Lexus needs transmission work? At speed I don't even notice the transmission, but even 15% throttle off the line

Oh man, how do I tell if this is why I think my Lexus needs transmission work? At speed I don't even notice the transmission, but even 15% throttle off the line its like its missing shifts or something! My Ford did this and it was a bad coilpack every time, but I have no other issues like that. I'll have to see if mine is DCT?