the one i use is:

when green flag clicked

reset timer

forever
set [fps] to ((1) / (timer))
reset timer
end

(note: if the blocks look unaligned or just are genuinely in a mess please tell me)
however, using methods to set fps to a higher value have not worked, and the only way to change it is to lag the project in general to get the counter under 30.
i've also used another fps counter, but instead it gives me 15 fps instead of 30 fps from the fps counter above.
in general i just need a consistent fps counter

Your FPS counter should be working. On the Scratch website, you won't be able to make the FPS counter go higher than 30 since that's the framerate all the projects run at. If you want to try testing your FPS counter at higher framerates, you should share your project and port it into Turbowarp. Holding the alt key and pressing the green flag will switch the project to run at 60 FPS.

Anyway, if you want to try a different script that doesn't involve resetting the timer, you can use this:

when flag clicked
set [Previous v] to (0)
forever
 set [FPS v] to ((1)/((timer)-(Previous)))
 set [Previous v] to (timer)
end

beatboxer433 wrote:

the one i use is:

when green flag clicked

reset timer

forever
set [fps] to ((1) / (timer))
reset timer
end

(note: if the blocks look unaligned or just are genuinely in a mess please tell me)
however, using methods to set fps to a higher value have not worked, and the only way to change it is to lag the project in general to get the counter under 30.
i've also used another fps counter, but instead it gives me 15 fps instead of 30 fps from the fps counter above.
in general i just need a consistent fps counter

An fps counter does not change the fps it detects the fps (hence fps counter)
As PhiPhenomenom has said you could use TurboWarp if you would like to increase the fps

beatboxer433 wrote:

the one i use is:

when green flag clicked

reset timer

forever
set [fps] to ((1) / (timer))
reset timer
end

(note: if the blocks look unaligned or just are genuinely in a mess please tell me)
however, using methods to set fps to a higher value have not worked, and the only way to change it is to lag the project in general to get the counter under 30.
i've also used another fps counter, but instead it gives me 15 fps instead of 30 fps from the fps counter above.
in general i just need a consistent fps counter

I'm no professional, but you should probably post this in the “Help with Scripts” topic instead. Also, there is a McVincient (@fanjoua) video on how to make one.

(VovoV)