This is going to sound like a very weirdly specific issue but I've messed around on other sites and clicked other buttons on Subeta and it seems to only be affecting certain green buttons? specifically Finish Quest, Complete when depositing/withdrawing sP in the vault, and "I've got the (item)" during Item Hunt

These buttons seem to have this weird lag going on. It's not affecting the Search Vault or Move to Inventory buttons within the item vault or the Quickstock page's Stock Items button, but clicking any of those that I've listed above seem to make the whole entire page freeze and it takes a solid 10 seconds for my click to register.

Using Firefox (updated today) and Windows 10

That's odd! I also use Firefox and tried this out and didn't notice lag on the pages/buttons you mentioned. Have you cleared your browser's cache recently? The lag may be it trying to reload a page from cache?

I just cleared everything and it's still happening :/ Also tried it with all my extensions disabled. I guess it could still be something on my end but it seems really weird that it's only happening with certain buttons. It does seem to only be lagging in Firefox though - I tried in Brave and it was fine there [edit] Have also tried restarting my computer and clearing my custom CSS and it's still happening. So whatever is going on, if it's on my end, I have no idea what the issue is [edit] Next day - it seems like clicking these buttons with the middle mouse button to open them in a new tab works fine. I have absolutely no idea why left-clicking freezes the whole page like that or why it's only some buttons and only this site