Generally, if there is a server issue on our side, the forum will be on fire with complaints.

While I know people don't like to hear it, it is generally something between their device and the server. Your traffic is going to the east coast of the USA where the game server is located. Any issue along the way could be the cause of your Laocagrid's lag spikes.

As for bad Frames Per Second (altic's issue) that sounds like your device is having a hard time displaying what the game is trying to render. Have you restarted your device recently? What are you playing on? Are there a lot of applications open in the background?