Hi i was doing deltarune speedrun attempts and the game randomemly speed up does this make my run invalid and does this only happen on survey program

If the game is running significantly faster than it should be running then your run would be invalid, even though it's just a game bug. (One that would admittedly save a lot of time) The issue was supposedly fixed years ago on st​eam versions, and it's definitely fine on console. It is a known bug, so there's probably a way to tackle it on the platform you're using. (I'm not a game expert so don't quote me on my advice)

Thanks I was using survey program I will just use current patch for chapter 1 I would rather have 10 second time loss due to lag then an entire run being invalidated due to an issue I can’t control

there's the possibility that the game is speeding up because you are playing in fullscreen. if you use a monitor which is beyond 60hz, the game will sometimes speed up. you can either try setting your monitor to 60, or playing in windowed mode. if the window is too small, you can try using a program like dxwnd to resize it. hope it helps!