Firstly check with other streamers. It’s often because Twitch is simply ‘twitching’ - or slow due to a general issue. Check also that your transmission OUTPUTS are not set to high. This often just requires a bit of playing around with your output settings within the broadcast software that you are using.Also check that you are not using too many devices over your internet at the same time. A lot of usage can definitely cause a delay in the frame rate. Also make sure you’ve got your cable directly connected to your device, rather than wifi connection.It might also just be down to the type of hardware you use - better gaming consoles or more powerful computers will deliver better quality streams. This can depend on your RAM or your gaming card capability or. simply the age of your hardware: the newer the better.