As far as I know usually that tank has very little to do with the actual vape as long as it doesn't leak etc.. the vape is produced from the coil / cotton etc. the only other thing I can think of is your juice is just too sweet for high wattage or bad coils, but I'm no expert on DL tanks so...maybe someone else knows more about that tank.
This specific juice is not even sweet. It’s supposed to be strawberries and cream, yet all I taste is strawberries that aren’t ripe at all lol