100% CPU usage

So I recently got back into Starmade and started constructing a large ship (over 600m length, 300m width and 100m height).
The game ran smoothly until I've been filling the ship interior up with 10x10x10 shield blocks.
Now when ever I place a block, my ping goes over the thousands and my FPS drops down to 1. After a few seconds, my FPS goes back up to 50-60 and my ping goes back down to 0 (This is in Single Player).
I opened task manager on my second screen, and I found out that when ever I place a block, my CPU usage goes from 50%-70% to 100%. I use an Intel Core i3. This hasn't happen to me in the past when I encountered large ships or an abundance of ships.
I'm currently playing the game on version 0 15, I have downgraded it to an older version but there was no difference.

Any help to solve my problem would be greatly appreciated as I am very disappointed because I cannot continue my ship.

der_scheme said:

Please search before posting. These two threads describing the same issue can be found on the very first page of this subforum:
http://starmadedock.net/threads/how-do-some-players-use-reallyyyy-manyyyyy-shields.431/
http://starmadedock.net/threads/shield-block-lag.1170/

Click to expand...

Those threads didn't explain how to fix this issue, or if it's a problem with the game. So I was hoping that posting a thread with a more obvious title would get some more people here.