@allanfelipe I figured out the problem. It's because Opera is somehow doing memory-heavy writing routine to the History file in the Opera folder. When I deleted the entire (maybe a month-long) History, the file went from 6 Mb to 160 Kb, and the deleting speed dropped to nearly zero. This sort of issue has not been a problem until the start of this year or later, which means Opera has started to employ a new routine that now causes it. I outright ask them to fix it, dammit.

As of somewhat recently (maybe a month, not sure), manual selective History cleanup became a stupidly annoying chore, because even single-entry deletion takes some 3 seconds per entry, and if I use a Search function to separate a group of entries, their deletion literally makes the entire PC overclock as if it's using up most of my Memory to do so.
Note: This is not caused by me having a months-worth clog of History. I deliberately checked it on a cleanly wiped History, and there was almost no difference, especially for the Search-related nonsense.
Also, Opera is known for years to be a Memory-eater for no valid reason, so I fully suspect it being yet another such bug.

@vegelund
I'm the one who posted the "History deletion" complaint several months ago. I was told that it is fixed in Opera 100+... except it isn't. You still have to manually clean up your (bloated) History to remove that lag. This is clearly a coding issue, no doubt there (it strictly depends on the size of the History file alone, which is extremely visible via testing), but somehow nobody cares to even try investigating it, let alone actually fixing it. Nice support we have here, don't we? I mean, it's not like we have people complaining about the genius decision to "update" the general "theme" as well, no?

@wizardanorak
If you mean the entire screen going full white blank for a few seconds, it happened to me 1 minute ago. It's the second or maybe the third time in the last short time (not sure exactly) already. And it does seem to be Opera-specific as well. What the heck are they doing with it now?

@wizardanorak
If you mean the entire screen going full white blank for a few seconds, it happened to me 1 minute ago. It's the second or maybe the third time in the last short time (not sure exactly) already. And it does seem to be Opera-specific as well. What the heck are they doing with it now?

@bitrat Same by me, minus Portable. Weird. Checked it again now - works fine, allows instant non-lag deletion even of Search results as well. I'm happy it is finally fixed, but it's beyond weird that it seemingly just "chose another victim", lol.

@allanfelipe Well, someone posted a thread complaining that it Started causing issues only now. I really guess it's a case by case issue, it seems.

@bitrat Funny how our problems are directly opposite. I had this problem until the latest update. So there must be something system-related that causes it.

Interesting. It seems that 103 finally fixed this nonsense today. Bumping this thread for others to share their experience. How is it, guys?

@mrmilesmano
Note: This is the Opera Forum... So, yeah. Nice, nice.
Good question: Why am I still using it? I mean, nostalgia and esthetic conditioning, yes, but why really?

@burnout426 Well, that was how many months ago? Great devs are great. Riiight. Are they trying to make us stop using Opera, eh?

@burnout426 I know how to get it back. I'm just pointing out that it's a bug anyways, and should be fixed.

More often than not, the Download button in the address bar tab disappears at random times for unknown reasons, and I mean it during or after finishing a download action. Makes literally no sense, is random, and I don't see any setting related to this (not that it'd be random in such a case). Any solution, or as always?

@vegelund
I'm the one who posted the "History deletion" complaint several months ago. I was told that it is fixed in Opera 100+... except it isn't. You still have to manually clean up your (bloated) History to remove that lag. This is clearly a coding issue, no doubt there (it strictly depends on the size of the History file alone, which is extremely visible via testing), but somehow nobody cares to even try investigating it, let alone actually fixing it. Nice support we have here, don't we? I mean, it's not like we have people complaining about the genius decision to "update" the general "theme" as well, no?