On the latest firmware both my devices (not sure if i have TSW or TSS) work smooth enough.
Latest firmware without paywall you can found here: https://crestrondevicefiles.blob.core.windows.net/tsx-firmware/touchscreen.txt
TSS and TSW both use same firmware file.
Model you can found on the back.
I have one TSS (with camera and mic) and one TSW.
Both of them have stereo speaker.