Turbo Build in Fortnite

[ShogunPatch]

Hi Jibb
I've been using JSM to play Fortnite with my DS4 over Bluetooth for about a month now and have to say I'm loving it. I've just noticed one thing, however, (I'm a pretty low-level player): it seems that JSM is preventing turbo building in Fortnite. In other words, if I go into build mode, hold down a button to lay any piece and, say, rotate, it only builds the first piece. I have to keep pressing repeatedly to build a box for example. I'm pretty sure I have all the right options turned on in Fortnite and that this is a JSM issue because if I close JSM down and revert to normal bluetooth (i.e without gyro controls, etc), it works as intended.
I'm guessing (or and hoping) this is a settings/config issue rather than a bug, but would appreciate your input on how to resolve it.

FYI, my (pretty basic) config file is as follows:

MIN_GYRO_SENS = 1
MAX_GYRO_SENS = 3
MIN_GYRO_THRESHOLD = 0
MAX_GYRO_THRESHOLD = 60
GYRO_ON = ZL
STICK_SENS = 60
STICK_POWER = 2.5
STICK_ACCELERATION_RATE = 0.75
STICK_ACCELERATION_CAP = 2
RIGHT_STICK_MODE = AIM

Many thanks.