Which distro/DE would be right for an older laptop used to play older games?

So I have a laptop from 2015 with an i5-5200U CPU @ 2.20GHz, dual channel 8gb ram, and a 1tb HDD. I got this laptop for free from someone giving it away, and since I already have a newer one for my general tasks, I was mainly hoping to use this one for older games (90s-2010s) and using CDs and DVDs with its disc drive as I don’t have another one. I was also considering running a Monero node on it if possible. Btw, I’ve used a few Linux distros before like Fedora Workstation/KDE, Silverblue, and Tumbleweed for about a year, so I wouldn’t consider myself a complete beginner, but I’m still definitely still a noob, so be prepared for some noob questions. Right now, I’m using OpenSuse Tumbleweed with XFCE on it and it runs, but just feels a little unresponsive and the CPU gets used up quite often. I’ve been having some issues running any games through Lutris as well. For some reason, Half Life runs great but none of the other games I try will even launch. This has been making me think about switching to a more stable distro like Mint XFCE or MX Linux. I know that it’s worse for security, but I figured that I have older hardware so I wouldn’t get as many benefits from a rolling distro like I’m using now. Another thing I’ve been debating is KDE Plasma vs XFCE vs LXQT. I have a feeling that KDE Plasma will be harder on my resources than the other two options, enough that it wouldn’t be worth the Wayland support. And would Wayland even work properly with an older laptop like this? I’ve been liking XFCE’s simplicity compared to the KDE use I’ve had before on a different PC. I don’t know much about LXQT, but I’ve heard that it’s lighter than XFCE and has Wayland support, so that might be a good option. I definitely don’t want to use Gnome because I dislike their view of how a DE should be. TLDR: I have an older laptop from 2015 that I intend to use for playing older games using Wine. I’m trying to figure out what the best distro/DE option would be for me, and if it would be worth the tradeoff of using a stable distro/x11 DE.