The spellcheck is terrible, the dictionary is small

[afallingbook]

First. I open a note and have to wait up to a minute to load spellcheck indicators, red highlight. If I scroll the note, everything aggravates: a have to wait even more, and spellcheker find only 1 or 2 mistakes. If I copy that bottom text to a new note - it immediately highlight all mistakes. Scrolling ruins spell check
It brakes after ~1200 words

Second. The default dictionary for Russian is terrible. It marks as mistakes names and common obscene words like “дерьмо” (shit) and slang, and evencommon words like “обувница” (shoe cabinet)

[Yurcee]

Obsidian user with multiple language checkers active here.
I have found similar performance issues on my Windows install (I tried haphazardly scrolling up and down as a way to get the checker to get what I want) but not on my Linux install.

• You can try installing another OS. There’s tons of tutorials on this on the net/YouTube.

I can’t say anything about the Russian dictionary being small other than that it is not an Obsidian issue as I seem to remember Obsidian uses an external electron spell checher (equivalent to what you’d get in Chrome). – I tried to check on the forum for this but I can’t find it now.

I agree the first problem needs addressing on multiple fronts (by you and for other users, generally).

[afallingbook]

Yeah, it works fine on Mac.

[afallingbook]

On mac it worked also particularly and temporary… And after - long work or PC after sleep - spellcheck tottaly stops to work. One has to close and re-open all windows to start the spellchecker.

[Yurcee]

@Yurcee

You can try installing another OS.

Terrible advice. It was my own, so I can say it.

Windows vs Linux

I alternate on Windows 11 and Linux Mint now. I don’t own a Mac.

Windows 11 as an OS is super fast all around with Obsidian fast also. No driver issues as on Linux, etc.
My experience from using various Linux distros (using Appimage and debian packages) is that typing is slightly lagging compared to Windows. Same config, same plugins, same snippets and theme, of course.

But the one thing going for Linux is that the Spellchecker is activated on the whole document (almost) instantly, while on Windows I feel like I need to hunt for the mistakes by clicking into paragraphs.

On being unproductive

This unreliability is causing anxiety and a constant feeling of being hung-up on which OS one should load (if available), which puts a cramp in productivity, which consequently defeats the purpose of using the app we all love so much.

[Yurcee]

Through personal communication (1) sent by OP, and with an idea of my own (2), it seems to have got better…

1. Enable High Power GPU mode for Obsidian.exe in Graphics settings as per the guide from here:

https://www.reddit.com/r/ObsidianMD/comments/16hvjiy/fix_for_a_slow_obsidian_graph_view/

Set Obsidian processes to High priority (not sure if needed but can’t hurt):

Start-Process -FilePath "C:\Users\yourusernamehere\AppData\Local\Programs\Obsidian\Obsidian.exe"
Start-Sleep -Seconds 55
$obsidianProcesses = Get-Process -Name "Obsidian"
foreach ($process in $obsidianProcesses) {
    $process.PriorityClass = [System.Diagnostics.ProcessPriorityClass]::High
}

Save latter to your Desktop with ps1 extension. Double click script to run Obsidian through this new shortcut.

Both for Windows, of course.