Crease removal actually starts in the drying process: before putting them on the drying rack, really spread out your clothes properly. They will naturally dry with fewer creases.
Do you iron a lot in one time (a full family laundry for instance)? Consider using an Ironing System. Systems are the irons with the bigger base in which water is located. Systems save you 50% of the time spent on ironing because the pressurized steam output leads to easier crease removal, thus a better & quicker result.
Linen is notoriously difficult to remove creases from. You get the best and quickest results if you use a hot steam iron while the fabric is still damp from the wash. Iron dark linens inside out.
To minimize the reappearance of creases after ironing, it is worth playing with steam ironing vs. dry ironing. Steam moistures and softens creases. Hot dry ironing removes moisture and helps to retain the shape of the fabric better after pressing. Use full steam in the first few strokes of ironing and end with a few strokes of dry ironing.
Using steam is easier to remove creases. Mostly you have to activate the steam trigger for steam. When the trigger is released, steaming stops. Do you really like using steam and therefore use it continuously? Philips has iron systems with a steam lock, providing continuous steaming without having to press & hold onto the steam trigger. Do release the steam lock once in a while to stop steaming during resting intervals. This prevents steam condensation on the resting area and also conserve energy.