As a practitioner or a regular student of Pilates, always come with the conscious understanding that every movement in Pilates takes times. To create stability, and strength the student must be aware of the slightest movement which takes them out of alignment or plumb. There is always a visualization aspect, such as imagine there are weight tied to ankles or wrists,  this imagery helps in a slower (not necessarily snails pace :)) more defined series of movements, In a beginners class patience above all is the key, body awareness the direction of your breath and integration of the fundamentals.. keep practicing