Cook the pasta in salted boiling water until al dente. Reserve ½ cup pasta water, then drain.
Season the shrimp with paprika, salt, black pepper, and Italian seasoning.
Heat butter and olive oil in a large skillet over medium-high heat. Cook shrimp 1 to 2 minutes per side, until pink and tender. Remove and set aside.
In the same skillet, sauté the garlic for 30 seconds, until fragrant.
Add the chicken broth and heavy cream. Simmer 3 to 4 minutes, then stir in the Parmesan cheese until smooth.
Stir in the lemon juice, adding reserved pasta water if needed to loosen the sauce.
Return the shrimp to the skillet, add the cooked pasta, and toss to coat evenly.
Garnish with parsley and serve immediately.