I've tested this multiple times & the conclusion is the same. Over a period of time, it just rams up ram useage on the client. 

I have 32GB DDR4, playing rust normally with it disabled. Ram use is between 5GB - 7GB. I enable the plugin, after 5-10 minutes, the ram creeps up higher & higher, it reached 17GB. I unloaded the plugin, after 2-3 minutes the ram usage dropped to normal levels. I repeated this 10 times in different scenarios & the results are pretty much the same. Tested this on another system, which only has 16GB DDR4, ram use hit 14GB & the game kept sticking, freezing & then skipping ahead. I removed the plugin, after 2-3 minutes, back to normal. And the 60+ player base I have on my dedicated server all experiance the same. 

Is there an issue with this? I've not used it for a long time because the maps we're never accurate. I learned a few days ago, to crop the map as it added the grid numbers/letters at the bottom & right side, which threw off the location. But its just caused so much lag.