@ljbf What's normal? Too many unknowns; age, physical condition pre-operation; what you have been doing post-operation; are you active? working out (if so, doing what) and how many times/week; who are "doctors" and what experience do they have? your diet; weight; etc, etc.

Why aren't your doctors concerned? Is this something they see often in their experience?
How many anterior hip replacements have they done?

@ljbf You didn't mention your age, but if you are in your mid-70's, you should expect up to a year to recover. Healing is pretty slow at older ages. You should best be doing standups from a chair, doing at least 100 reps once or twice a day if you can tolerate it. And you can ice it if you get to too much pain. Generally, do not go past the point of feeling pain during your PT, just break it down into fewer sets reps throughout the day; take your pain relievers ahead of your PT. Once you change your PT routine, it will be 2 weeks before you see an improvement.