In the latest update (yesterday I believe) the backswing speed/sensitivity is dramatically changed (on Android). The finger movement for a full backswing is shortened which makes it very hard to do minor adjustments. If full swing is not wanted, I must now do less than millimeter adjustments, and will most likely randomly change the swing position slightly when lifting the finger from the screen. This isn't about skill any more, it's about pure luck.
The game just got very much harder for no apparent reason and if the original swing sensitivity isn't restored I will probably stop playing. This isn't fun any more.