Worked on model element loading and rendering in the oven-sh/WebKit and WebKit/WebKit repositories, focusing on performance and stability for model-heavy web pages. Introduced lazy loading for HTMLModelElement using C++ and JavaScript, implementing viewport-based logic to load models only when visible, which reduced memory usage and improved resource management. Addressed bugs affecting model loading stability and entity transform restoration, ensuring that visible models load correctly after source changes and that transform states persist across reloads in stage-mode orbit. Enhanced cross-process synchronization between ModelProcess and Web Content Process, contributing to more consistent rendering and reliable user experiences during reload cycles.