A 55-year-old man with no known cardiovascular disease attends for a periodic health examination. He is a non-smoker, has dyslipidaemia, and his 10-year atherosclerotic cardiovascular disease (ASCVD) risk is calculated at 18%. His fasting lipids show total cholesterol 5.6 mmol/L, LDL-C 3.4 mmol/L, HDL-C 1.0 mmol/L, and triglycerides 2.1 mmol/L. According to Canadian dyslipidaemia guidance, what is the most appropriate lipid management strategy?