Does thick semen or effect sperm count?

My fiance has super duper thick semen. Like you could throw it at the wall and it would stick all together like slime. I was just wondering if the thickness effects sperm count. We are planning to have a baby after we get married next year and were just wondering if we should be concerned with his swimmers well being. Does this mean he has a lot of sperm or a little bit. Can the sperm even swim out of that thick web of mess up the l c into me to get the egg to fertilize?