What does it look like for yours with those set on?
What others have said, or Do you have a tablet? If you don't, then enabling pen pressure won't do anything. Problem in #1 is because the spacing is different. Go to Brush Tip Shape and use the slider to reduce the spacing under Spacing.
hi, Could you please take screenshots like the ones in your link that show YOUR brush strokes (which don't look right) with the same options checked in the brush options panel? Because my first guess is that 1)you don't have your options set correctly. Or 2)possibly your tablet drivers are not installed properly. or 3) you need to reboot and start photoshop with your tablet attached