Enscape does its best to produce reflections in real-time rendering that are as realistic as possible.
Unfortunately, this is a very demanding task for real-time rendering engines, as the same playback fluency needs to be maintained whilst displaying large parts of the same scene from a different angle. This means that two or more rendering tasks are needed to be performed by the GPU.
Therefore, to try and keep the performance at an acceptable level, Enscape utilizes a complex algorithm to decide what to show in a reflection. This complex algorithm considers facts such as complexity of models and textures, the distance to the camera, etc.
This is a behavior we're committed to improving incrementally, but fully realistic reflections will still be an inherently difficult topic for real-time rendering engines to fully address for the foreseeable future. You can read much more about this here in our Forum article.