Synapse slows down my keyboard

Am I the only one that has lag on their keyboard when Synapse is on? I'm using a Blackwidow TKL and when I'm writing for work I have to turn the software off since it's slowing down my keyboard and sometimes even some keys don't work well... I updated Synapse 3 to 4 but the problem remains lol Synapse is so useful while playing videogames but it sucks for other tasks. Yeah, my keyboard is clean and its firmware is updated to the last version, but it's already 3 years old