I’ve been working on software for more than a decade now at companies most of which implemented some form of kpi system. Ime nothing you do more than 1-2 months before bonus is evaluated ever matters. You can ship some big things in the beginning of cycle and then hit a rough patch for a month before review and 90%+ of management will hang you out to dry. Or you can fuck around for better part of the year then ship a week before reviews are in and get a bonus/promo