I played Goldeneye for about 300 hours and with a KD over 2 and a win/lose ratio is over 4.
I will tell you no lie that the wii mote has a steep learning curve but it is better.
The time it takes to react and to move to where your target is located is natural. It is more natural to use the pointer and more faster. It also gives you more freedom for looking around. Also the hand shaking is just a sign of you not being used to the controls yet. I can hold a steady hand no problem but it does take time getting used to.
Their is no issue with the controls. It is just a different way to play. No one can pick up a motion controller and be good right away. You need to invest time to get good. Like practicing a sport. Once you master it the old controllers will feel dated and old.