Generally they're something I don't like but have learnt to live with. Sometimes they're something I wouldn't notice on my own and other times they're very clear and in my opinion the game should not have been released in such a state.
Mario Kart 8 on the Wii U has what is presumably a glitch causing it to run at 59fps which I only know about it because it was discussed online but that it was fixed on the Switch and the fix was never backported to the Wii U version is slightly disappointing. Mario Kart 7 on the 3DS drops 1 frame every 3 seconds and that too is something I would not have noticed but would still prefer to see fixed. Both these games got updates years after release to fix a security flaw.
Hyrule Warriors on the Switch runs at 1080p in handheld mode which causes lots of frames dropped due to a GPU bottleneck. 720p patches exist but the UI only runs at 1080p, causing visual UI glitches with said patches enabled. In this case I find the performance disappointing, a bit of time was saved by not drawing a second interface but at a big cost to handheld performance. Then there's Link's Awakening which alternates between 30 and 60fps, IIRC it's due to a memory leak. It's very noticeable and the game is still playable but has room for improvement.
I never tried Pokemon Scarlet or Violet because they fall too far short of my expectations.
In some more ambitious games like The Witcher 3, performance issues are an inevitability but are caused by hardware limitations rather than cost-cutting. I won't play The Witcher 3 on the Switch but am impressed to see a playable version of the game running on it.
I was glad to see Tears of the Kingdom got a performance improvement in an early patch.
The main reason I hacked my Switch is overclocking, not piracy, so while performance issues apply less to me, I still think some games should be given more time before release or at least get performance patches.
Mario Kart 8 on the Wii U has what is presumably a glitch causing it to run at 59fps which I only know about it because it was discussed online but that it was fixed on the Switch and the fix was never backported to the Wii U version is slightly disappointing. Mario Kart 7 on the 3DS drops 1 frame every 3 seconds and that too is something I would not have noticed but would still prefer to see fixed. Both these games got updates years after release to fix a security flaw.
Hyrule Warriors on the Switch runs at 1080p in handheld mode which causes lots of frames dropped due to a GPU bottleneck. 720p patches exist but the UI only runs at 1080p, causing visual UI glitches with said patches enabled. In this case I find the performance disappointing, a bit of time was saved by not drawing a second interface but at a big cost to handheld performance. Then there's Link's Awakening which alternates between 30 and 60fps, IIRC it's due to a memory leak. It's very noticeable and the game is still playable but has room for improvement.
I never tried Pokemon Scarlet or Violet because they fall too far short of my expectations.
In some more ambitious games like The Witcher 3, performance issues are an inevitability but are caused by hardware limitations rather than cost-cutting. I won't play The Witcher 3 on the Switch but am impressed to see a playable version of the game running on it.
I was glad to see Tears of the Kingdom got a performance improvement in an early patch.
The main reason I hacked my Switch is overclocking, not piracy, so while performance issues apply less to me, I still think some games should be given more time before release or at least get performance patches.