Hello everyone! 1994 Celica GT high rpm stutter

New to this board looks like good place I could find some help.

I have a 94 celica gt automatic. I drive it a 168miles each day for work! I have had only very minor issues out of it the last thing being broken timing belt. I got that fixed.

Problem:
if you need to accelerate hard and/or downshift with heavy throttle or hit higher rpms Id say ~4500 rpms and above or so it will stutter and fall on its face. the sound is similar to launch control.

any help would be much appreciated

thank you.