LOW FPS Empty Scene

how to increase the FPS after exporting the game, I am using an empty scene and I am getting 58 FPS On my GTX 1080 video card, I am using 3440 X 1440 Resolution with vsync off, it happens with all the versions that I have installed, 4.18,4.19,4.20, 4.21, on the editor runs 105 FPS but after export the game drops to 60 or 58, I don’t thing is my video card, gaming retail games reaches more than 100 FPS, I hope some body have the solution for this.