Published May 9, 2026, 9:00 AM EDT Ayush Pande is a PC hardware and gaming writer. When he's not working on a new article, you can find him with his head stuck inside a PC or tinkering with a server operating system. Besides computing, his interests include spending hours in long RPGs, yelling at his friends in co-op games, and practicing guitar. Having spent a long time with Proxmox, I’ve run into all sorts of obscure settings and performance tweaks – some acquired from random forum posts; others unearthed from issue threads on random Proxmox-centric GitHub packages. But the real gold mines were the seemingly cursed settings that, despite sounding unhinged, actually come with niche benefits, and in some cases, can be game-changers for your specific workloads. Nested virtualization fits in the latter category, and while it’s fairly easy to set up, it’s not very popular in the PVE community.…