You likely do not need to download a plugin separately.
If you are using a relatively modern version of PCSX2 (version 1.4.0 or newer), the DirectX 11 renderer is built-in. You do not need to search for external files or "plugins" online. In fact, downloading random .dll files from third-party sites can be unsafe for your PC. pcsx2 directx 11 plugin download new
To get the newest DirectX 11 plugin, follow these steps: The State of PCSX2 and DirectX 11: Why
pcsx2.net.Warning: Never download "GSdx11.dll" from a random forum post from 2012. Those plugins are incompatible with Windows 10/11 and modern GPUs. Go to the official PCSX2 website: Navigate to pcsx2
Tests on a mid-range GPU (GTX 1660 Super / RTX 3060) with a demanding game (Shadow of the Colossus at 4x native):
Vulkan also uses 10–15% less CPU on the same hardware, freeing resources for upscaling or recording.