You need a normal time remapping
You need a normal time remapping like davinci resolve and final cut pro x
Anton Makarov commented
Work with time remapping in timeline - is uncomfortable. No keyboard inputs, only mouse. Make it in Effect controls window (with editable keyframes) like ALL other effects and controls.
P.S. time remapping in After Effect - very useful and comfortable!
OR make it like After Effects. Currently it is counter intuitive. Nothing acts the way you would expect it. After Effects time remap works exactly as you would expect.
Jim Simon commented
What's abnormal about the current Time Remapping?