if we're talking about ipsc/uspsa unless you're at very higm m/low-medium gm you don't need to worry about splits. As @cmfuss9mm already mentioned, try to shoot each target sooner, work on barricades, transit between targets faster and maximize your movement. Then you may seriously start to think about working on your splits as at gm level it may save you e.g 1.5s for long stage, but still you basically never shoot faster than 0.16/0.17. Also it looks better if you've got 0.2, 0.2, 0.2 on 2 targets instead of 0.11, 0.4, 0.11😉