I am the owner of the RX5700OC card. The system is heavily loaded with this process in idle mode. Using the latest drivers, instant replay does not affect the consumption of this process. I use win 10 LTS with the latest updates.
How do I solve this problem?
I certainly can't say this is what is causing your issue, however the AMD drivers are optimized to work with the current latest released Windows version. So your LTS version does not fall into that category.
You didn't give really any specs of what you system is and I am not even sure about what your problem is.
You might want to elaborate a bit and give full system specs.
You can also contact AMD support here: https://www.amd.com/en/support/contact-email-form