Question How to set up slicing in PSB importer

Hi!
Every time I import PSB files into Unity it often slices PSB layers very tightly. This is especially true for small layers, which causes problems later on when adjusting the grid (layers look like cropped). And I have to spend time and change everything manually.
Is there anything I can do to adjust the slicing settings of the PSB and importer? Or maybe i need to configure something in Photoshop? Thanks!
PSD importer version 4.1.0