kRPC has lots of lag?

[LockManipulator]

I'm creating a mission control style mod and getting the altitude, periapsis, apoapsis, orbital speed, surface speed, etc etc seems to *really* lag. I update it only once a second (I would love to update it more often for a better mission control experience) but then once a second there's a huge lag spike for the mission control windows displaying the data. If I'm dragging the window or resizing it, it's super noticeable. Or if I'm selecting a drop down menu to view list of vessels to target, etc. The game is fine though, doesn't lag with this. Same issue with the mod MOCR which does the same thing using kRPC as well. It will freeze and crash once I have 3 or more data windows open. Is there a way to get this data without the lag? I don't see how it would even be causing the lag tbh if it's just pulling some simple data.