Prepare the shrimp by cleaning and deveining, then pat them dry thoroughly with paper towels.

In a mixing bowl, combine potato starch with salt, pepper, and cayenne; whisk to create a uniform coating mixture.

Dredge each shrimp in the starch mixture, ensuring they are completely covered; shake off excess coating before frying.

In a large skillet, heat neutral oil over medium-high heat and fry the shrimp in batches for 2-3 minutes on each side until golden.

Reduce heat and add butter to the same skillet; once melted, add minced garlic and sauté until fragrant.

Toss the fried shrimp back into the skillet with the garlic sauce and stir to coat evenly; cook for an additional minute.

Plate the shrimp immediately, garnishing with fresh lemon wedges and serve hot.