Normal for Eyelids to Be Still Droopy 3 Weeks After Blepharoplasty?

Often, there is still considerable swelling of the upper lids in most cases at three weeks post-op
blepharoplasty
. Before you critically judge your results, I would recommend waiting several months. If there is a small amount of excess skin still present, this skin is easy to remove to further improve your results. Judging from your photos, your eyebrows are in good position. Preoperative photos would have been helpful for comparative purposes. Nevertheless, be patient for now.

You have gorgeous eyes which like over 90% of the population have an asymmetric aperture.
As regards the "eyelid droop", without seeing your BEFORE picture I would bet you had significant drooping of the brows as well as excess upper lid skin. The BEST operation for that would have been a Brow Lift not a "he lifted both brows slightly " operation. let me explain.
With aging, the increasing excess skin of the lower lid is markedly worsened by droopy brows which greatly exacerbate the apparent excess upper lid skin. With the resulting impaired upper field vision, our forehead muscles (Frontalis) work overtime to raise the brows acting as curtains, in the process creasing the forehead with transverse lines.
When excess upper lid skin is surgically removed while the brows are not elevated at all or insufficiently, as soon as the patient is upright, the frontalis muscles do not work as hard to lift the brows resulting in sagging and the appearance of excess upper lid skin.
As a result you appear to have more excess skin on your right than on your left upper lid. The proper way to correct is to perform a combined Brow (Forehead) Lift with a Blepharoplasty.
The brows are elevated to a new normal youthful location. Only once this is done, any remaining upper lid skin is removed.