Crowded - Yes.
Busy - Yes.
Do'able - Yes.
Was in Sarasota for 9 years with relatives in Naples and find T.V. no more busy than those places.
But...if you avoid the busiest times - Not an issue.
Avoid 9AM mass and Sat. PM at any church in Florida! - 7AM and Noon masses are not an issue. Also, my best bet is St. Vincent De Paul 5:45 PM mass on Sunday afternoon; meets my lifestyle and always has room.
Eat dinner a little later - Everyone wants dinner at 6PM! 8PM usually not an issue.
Golf early or late - Everyone wants a 9AM tee time! Also, less issue with Championship courses. Priority membership helps a lot!
Pools - Never found them to be an issue!
Be a contrarian! Do things when others are napping!!!:
Also you're in Florida; gotta have patience! Plenty of restaurant seats in New Haven
(substitute your home town) in January!

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