Place potatoes in a large pot. Cover potatoes with water (water level should come about an inch or two above potatoes), season with 1 Tbsp salt. Bring to a boil over medium-high heat. Once it reaches a boil reduce heat to medium-low, cover and simmer until potatoes are just tender all the way through, about 10 – 15 minutes . Drain potatoes and let cool slightly, about 10 minutes .While potatoes are cooking prepare the dressing – in a mixing bowl whisk together olive oil, red vinegar, lemon juice, mustard, garlic, pepper, parsley, chives and thyme. Season with remaining 1 1/2 tsp salt, or to taste. Let mixture rest while potatoes continue to cook and cool slightly, then once potatoes are ready, pour drained potatoes into a large mixing bowl. Pour dressing over top and gently toss just a few times to coat.