Wow, your device just can’t keep up with what you are asking.
It shows that you are sending 2003 requests every second.
I think your system needs a massive rework, are you sure you need this many tags sampled at 1second ??
Reduce the number of tags, especially if you don’t use them, increase your sample rate, I’m sure you have tags coming from this PLC that do not need to be refreshed every second…
Have a look at this topic as well for some information :
I’ll the experts guide you on the proper steps to take, but expect massive rework on your side.