Mac の初期設定

system preference

Trackpad

ALL on

tracking speed

max

Keyboard

Keyboard

Kay Repeet

Fastest

Delay Until Repeet

Shortest

Input Sources

Puncutuation

. and ,

Accecibility

Mouse & Trackpad

Trackpad Options

Enable dragging: three finger drag

Sharing

Computer Name: xxx

多分，こんな設定をはじめにやったはず