That is normal. Tears of the Kingdom transferable caches often exceed 1.5GB due to the sheer number of dynamic physics interactions. Do not delete it unless you have to.
: Once Yuzu compiles a shader, it saves it to your hard drive. The next time the game requests that exact effect, Yuzu loads it instantly from the cache, eliminating the stutter. Types of Shader Caches in Yuzu
For high-end games ( Tears of the Kingdom with a 30GB cache), you need to tweak your Windows Pagefile. yuzu shader cache
: You might see objects pop in or look invisible for a split second, but the game will not freeze or stutter.
Sources: GameTechWiki compilation strategies, Yuzu asynchronous shader support That is normal
Optimizing Switch Emulation: The Ultimate Guide to Yuzu Shader Caches
Historically, this was simple. With modern versions of Yuzu, it is split into two distinct categories found in the shader folder: : Once Yuzu compiles a shader, it saves
The "stutter" occurs because the CPU is working hard to create the shader file on the fly .