It's a nice feature. However, I found it's hard to get it right to use kb as a mouse with 3D touch. Sometimes it just wont' register no matter how hard and fast

It's a nice feature. However, I found it's hard to get it right to use kb as a mouse with 3D touch. Sometimes it just wont' register no matter how hard and fast I press down. Very frustrating. Apple, are you listening?