Real-time rendering reduces initial loading times but increases runtime performance demands in applications.
It generates 3D visuals dynamically during use instead of relying on pre-loaded pre-rendered content, thus shortening app startup times.
However, on-the-fly processing requires continuous CPU/GPU resources, which can lead to lower frame rates, lag, or stuttering in complex scenes (e.g., detailed 3D models in games or AR), especially on lower-end hardware.
To balance, developers often optimize asset complexity or use adaptive rendering (e.g., adjusting polygon count based on device capability).