For now, there is infrequent but persistent shader compilation stuttering during in-engine cutscenes and gameplay. In the cutscenes, it causes the video to fall further behind the audio with each stutter, which is most distracting when character faces are visible during dialogue. Once a few people play through the entire game, this stuttering should basically disappear (confirmed by repeating the first mission, which was nearly stutter-free the second time).

There is also occasional non-shader related slowdown during gameplay, particularly when smoke/debris effects are visible in a large portion of the screen (e.g. killing an enemy mech up close). In larger battles this slowdown can be substantial.