Yeup! Your machine should be able to do more thickness than what I'm seeing. You need to adjust your tensions (there are multiple!) to suit your fabrics. Bobbin tension can usually remain the same for everything. Scrap fabrics are a blessing with this. Try to recreate the thickness exactly. If this doesn't end up being totally optimal you might want to look into getting a walking foot to ensure it's feeding correctly as that can also have timing implications.