league native mode 60hz but im using a 144hz monitor

I need help from someone, my display settings and nvidia settings are both set to 144hz. Other games run at 144hz but when i run a dxdiag on league it says my native mode is 60hz not 144hz and i dont know how to get league to pick up my montior at 144hz any help would be appreciated. Ive tried google :) Current Mode: 1920 x 1080 (32 bit) (144Hz) HDR Support: Not Supported Display Topology: Internal Display Color Space: DXGI_COLOR_SPACE_RGB_FULL_G22_NONE_P709 Color Primaries: Red(0.645508,0.329102), Green(0.309570,0.616211), Blue(0.151367,0.072266), White Point(0.312500,0.328125) Display Luminance: Min Luminance = 0.500000, Max Luminance = 270.000000, MaxFullFrameLuminance = 270.000000 Monitor Name: Generic PnP Monitor Monitor Model: GN246HL Monitor Id: ACR02F9 Native Mode: 1920 x 1080(p) (60.000Hz) Output Type: DVI
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