Yeah that “magic-key-delay-issue” feels like “random-punishment -from the matrix”
Often it works fine , well most of the time , but then all of a sudden: nothig. press, press, keep pressing, move around…dead.
I think it´s very important to adapt to the mecanic as it is. this makes things much more easy.
Its not : see , move to teammate , stop and revive / Buff, move away.
Its more like: see , move along the teammate, buff /revive on the fly , keep moving, hope you dont get pulled to another teammate by accident ( wich is in fact the biggest problem here)
As a light medic i revive / buff while running fullspeed. Never stop ( well exept when randomly the matrix choose to take me out )
in cruical situations i slide into the downed teammate and suddenly move back into cover while reviving.
I think the bigger problem here is not the delay, but that the system doesn´t lock on properly.
It just feels weired when you want to buff someone and someone else is comming from behind, truning you head around 180 degrees with brutal force and pushes you some where you never wantet to go.