World of Tanks Live Gameplay in T26E5

Swapped my Patriot Tank for the stock version, far easier on the eyes.... I know the sound drifts out of perfect sync towards the end, I do not know why it does that..... My computer specs: Intel Core i7-2600K OC to 4.4Ghz - 16gb Corsair Ram - MSI Geforce GTX 1070 - Asus P8P67 Mobo - Asus RogSwift 4K 27" - Window 10 Home.