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Sounds to me like it just might be due to strings being a different gauge and possibly manufacturer than what you had on the guitar originally. Most factory setups on new guitars use a medupium gauge string versus a light string. Also, coatings on strings can make a difference too, Another thought is that neck is bowing.
The only solutions I can think of is to call the luthier first and explain it and see if he’ll offer some free advice or suggestions and avoid the cost of having a set up done if not necessary; try a different set of strings (mids). You can look up what the original strings were that were on the guitar at purchase. Usually on manufacturer website or using Google search.; As a last resort, You can take it to the luthier.