I noticed that pointer moving slow over layers at layers panel.
Is it possible to fix (especially if everything suggested at help I already done)?
MBP 15 (late 2012), High Sierra, CC 2018.
It should be emphasized that this issue wasn't noticed at 2017 version.
You may try an update the Photoshop version to 19.0.1 update and check if that helps to fix this issue for you.