@andypanther You should take a look at this relevant forum thread to understand why high scores were never added. In short, there's 12 pages over a year of discussion between the community which reached no conclusion, and the whole question has been put off to prioritize other tasks. I don't see that changing, especially since the site mods and devs always have their hands full.
You could try contacting the current super moderator for the game, who could reinstate you as a moderator. Also, make sure your email notifications are properly set up (check both the tab on the game itself and your settings).
It's my understanding that the Switch is capped at 60 fps, so this shouldn't be a problem. If the game looks like it's running at normal speed, it likely is.
Back to the originally asked question. Doesn't that version of Minecraft have an accessibility option to make sprint toggleable, meaning Badlion client (whatever that is) wouldn't be needed anyway?
You're probably thinking of a program called LiveSplit, which runs on a computer. To add this to the video you get from an Xbox, you'd need a capture card to route your Xbox video and audio to your computer, where you can use other programs like OBS Studio to place both the video/audio stream and LiveSplit into the same video/audio file. Capture cards can get expensive. However, unless the rules for your game specifically request this, this is not necessary. Splits are only really used by the runner and moderator, but are not needed to speedrun a game.
It shouldn't be too difficult to add a list of split times to your splits as a comparison you can switch to.
@manticor5 's solution is what's generally used when your game does not have a built-in timer which runners use and when your game does not need sub-second precision, which applies to most games. If, however, you do require or want that precision, you can framecount the video, which usually amounts to putting your video in a video editor or similar tool and counting the frames. You seem to already be doing this, so to solve your Premier Pro problem, just use a little math. If you know your video's framerate (let's use 60 fps as an example) and the length of the video to the hundredths place (e.g., 8:06.82) then you can find how many frames are in the video, or at the very least, just that last portion of a second. Taking .82 and multiplying by the framerate, 60 fps, we obtain: .82 * 60 = 49.2 which, once you round, tells us your run was 8 minutes, 6 seconds, and 49 additional frames. If you want that thousandths digit, you can flip the order of the calculation: 49 / 60 = .81666... which is rounded to the thousandth digit, resulting in .817.
Yep everything is still around, just rearranged (minus the mobile categories)
What are you looking for? If it's a splits application on iOS, you can use FramePerfect or LiveSplitOne. If you want splits in a run you recorded on iOS, I believe you have to edit the video separately.
You'd have to submit your run to the category's leaderboard here.
While it isn't stated in the game's rules, it looks like every run on that leaderboard has a video recording also, so I would keep trying to access the recording.
Video evidence is often a requirement, but every game (and category) has a different set of rules. Check those of the games you are interested in first.