Yes! It will get better. I didn't have the frequency issues you are having, but I did have severe rectal pain and pressure. I saw my surgeon about two weeks post-takedown, and he diagnosed cuffitis. Medications helped, and I'm also on a low dose of anti-depressant for irritable pouch syndrome. I'm six weeks out now and feeling really good.
Do you try to hold it when you have the urge to go? I know with UC there was no chance of holding it, and I was so used to having to run to the bathroom at every slightest urge. But I find that even if I have the urge now, I can hold it, even right after the surgery.
Have you had a post-op follow up appointment? Maybe there is something else going on that your surgeon can figure out. I was glad my surgeon was pretty aggressive and didn't let me suffer too long before diagnosing the cuffitis.
Hang in there. It will get better.