Slow moving drains aren’t normal, you shouldn’t be standing in water while you shower, or must wait while your kitchen sink slowly drains. Drainage is designed to move water and waste quickly. Slow drains are an indication of a blocked or clogged drain.
You could have hair, food, or even roots obstructing your drainage system.
If your clogged drains aren’t addressed quickly, they could lead to further, more expensive damage.