You can compare to mine: Budget after retirement (normal retirement age)
I see some big differences e.g. your food budget is almost as high as ours for a family of 5. Your holiday budget is about 3x what we have for a family of 5. Bringing these 2 line items down to 10k will increase savings by 50%.
In the end, Switzerland has high fixed costs, so the key is to increase your income to benefit from a kind of ‘operational leverage’. Doubling your income can lead to 5x savings. So rather than cut back, maybe focus on increasing income through career and additional income streams.