Would it be a good idea to invest in South Korean ETFs?

I noticed that South Korea did the best out of all the international markets last year and I don't have enough knowledge of the fundamentals to know if it will be a good idea to buy more of EWY or KORU going forward. For those who know more than me, do you think that there's still a good amount of upside in the next few years? I heard that there was a memory shortage and that it might persist until at least the end of 2027, so that's something I'm optimistic about, but I'm also worried about the impact of high oil prices on a country without much oil production like South Korea, and I'm also worried that maybe there's something I'm not seeing.