Why does the game speed fluctuate from slow to fast, and how do I prevent it?

Why does the game speed fluctuate from slow to fast, and how do I prevent it? - Young couple near golf car in park

When I play Terraria, the game speed will change while I am playing. So sometimes it will be at "normal" speed, then it will dip into a slow speed, or a fast speed. It seems the actual game updates are slower too, not just a dip in FPS. For example, if I am mining I will collect more ore in the same amount of time if the game is sped up, and less if slower.

It doesn't seem to be controlled by anything going on in game, when there is a lot of things going on screen, it won't always go slower, and sometimes may go faster!

I have an AMD R9 290, intel i7 4770K, 16GB RAM. Running Win10 now, but it happened on Win8.1 too. This is in a single player game. There is nothing else going on in the background.

What might cause this? How do I prevent this?






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Why is my game speed so slow?

If your computer does not have enough video memory to properly render objects displayed on the screen, the game will be slower to respond and appear laggy. For online games, low video memory can result in very slow game performance and lag because the computer has trouble rendering the game graphics.

How do you slow down games?

Sometimes, you may experience lag or FPS drops in Terraria because the game might be too demanding, depending on your current graphics card situation. It might be possible that the game might be too decisive for your current graphics card, or the game might not be compatible with it entirely.



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Images: Wendy Wei, Andrea Piacquadio, Radovan Zierik, Ryutaro Tsukata