I can confirm this is a legitimate issue. Upon reducing radio transmission range to a maximum of 10km, server frame time and FPS drastically improved.

We had a few radio models set to transmit 50km. While those radios were used, we saw spikes in frame time to as high as 1778.8ms. We averaged around 20.9ms, and at some points, we hovered around 90ms.

Upon reducing the overall transmission range to 10km or lower, we immediately saw a reduction in frame-time, and an increase in server FPS. This was the only change. We now hover around 12-15ms, and server FPS does not drop below 55.

I inadvertently confirmed this once more when I had accidentally reverted our arsenal configuration by one version, reinstating the previous radio range. Once again, performance suffered greatly. Upon updating the mod and restarting, everything was stable and back to normal.

I am unsure what has changed since 1.8, but these radios were configured for 50km since 1.6 launch, and we never had any issues. Since the launch of 1.8, it has been relatively common issue. Just not one that most would expect.

I am confident that this report is by and large, a big reason we have also faced severe performance drops since 1.8. Various modded radios in our server were configured to 50km range. I have since reduced that value to 7km to see if this resolves the issue at all. Will report back with my findings.

Yup, this issue has single handedly shut us down. I sure hope they fix this issue ASAP so that we don't lose our 6k+ playerbase.

The log is quite literally too large to include here.

This issue is quite severe

Experiencing the same issue on our end. Along with loading screen freeze ups, not allowing players to enter into the servers. I believe this is directly linked to this issue as it's overloading the console and server data, freezing players on the client side before they can get into the server.

04:41:53.710    RESOURCES (E): 'system/thermal/thermalProfileDefault.conf' is not a valid thermal profile!
04:41:53.710    RESOURCES    : GetResourceObject @"{CC547D988287BF7C}system/thermal/thermalProfileDefault.conf"
04:41:53.710     RESOURCES (E): Failed to open
04:41:53.710    RESOURCES (E): 'system/thermal/thermalProfileDefault.conf' is not a valid thermal profile!
04:41:53.710    RESOURCES    : GetResourceObject @"{CC547D988287BF7C}system/thermal/thermalProfileDefault.conf"
04:41:53.710     RESOURCES (E): Failed to open
04:41:53.710    RESOURCES (E): 'system/thermal/thermalProfileDefault.conf' is not a valid thermal profile!
04:41:53.710    RESOURCES    : GetResourceObject @"{CC547D988287BF7C}system/thermal/thermalProfileDefault.conf"
04:41:53.710     RESOURCES (E): Failed to open
04:41:53.710    RESOURCES (E): 'system/thermal/thermalProfileDefault.conf' is not a valid thermal profile!
04:41:53.710    RESOURCES    : GetResourceObject @"{CC547D988287BF7C}system/thermal/thermalProfileDefault.conf"