FPS Issue trying to Twitch Xbox One with WIN10

Hello

I have trouble trying to twitch my Xbox Onewith OBS and Xbox App WIN10 (monitor capture) Like this video

So I have a good network (190 Mbs Down and 9 Mbs Up)

When I twitch directly fro the XB1 is good but we cannot have friend chat... so borring exemple

But with WIN10/OBS i have this result exemple

....

I just want à stable 720p30fps do you think is possible ?

Below my OBS stats :

5:39:13: Open Broadcaster Software v0.655b - 32bit (´・ω・｀)

15:39:13: -------------------------------

15:39:13: CPU Name: Intel(R) Core(TM) i7-4710MQ CPU @ 2.50GHz

15:39:13: CPU Speed: 2494MHz

15:39:13: Physical Memory: 4020MB Total, 2171MB Free

15:39:13: stepping id: 3, model 60, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 8, total cores 4

15:39:13: monitor 1: pos={0, 0}, size={1600, 900}

15:39:13: Windows Version: 10.0 Build 10240 (revision 16384)

15:39:13: Aero is Enabled

15:39:13: -------------------------------

15:39:13: OBS Modules:

15:39:13: Base Address Module

15:39:13: 01160000 OBS.exe

15:39:13: 5DA00000 OBSApi.dll

15:39:13: 62090000 DShowPlugin.dll

15:39:13: 62060000 GraphicsCapture.dll

15:39:13: 61E00000 NoiseGate.dll

15:39:13: 624E0000 PSVPlugin.dll

15:39:13: 62040000 scenesw.dll

15:39:13: ------------------------------------------

15:39:13: Adapter 2

15:39:13: Video Adapter: NVIDIA GeForce 840M

15:39:13: Video Adapter Dedicated Video Memory: 2093875200

15:39:13: Video Adapter Shared System Memory: 2107781120

15:39:13: =====Stream Start: 2015-09-10,

15:39:13===============================================

15:39:13: Multithreaded optimizations: On

15:39:13: Base resolution: 1600x900

15:39:13: Output resolution: 1280x720

15:39:13: ------------------------------------------

15:39:13: Loading up D3D10 on Microsoft Basic Render Driver (Adapter 1)...

15:39:13: ------------------------------------------

15:39:13: Audio Format: 44100 Hz

15:39:13: ------------------------------------------

15:39:13: Audio Channels: 2 Ch

15:39:13: Playback device Default

15:39:13: ------------------------------------------

15:39:13: Using desktop audio input: Haut-parleurs (IDT High Definition Audio CODEC)

15:39:13: Global Audio time adjust: 0

15:39:13: ------------------------------------------

15:39:13: Using auxilary audio input: Micro interne (IDT High Definition Audio CODEC)

15:39:14: Mic time offset: 0

15:39:14: ------------------------------------------

15:39:14: Audio Encoding: AAC

15:39:14: bitrate: 96

15:39:14: Using Monitor Capture

15:39:14: Scene buffering time set to 700

15:39:14: ------------------------------------------

15:39:14: Video Encoding: x264

15:39:14: fps: 30

15:39:14: width: 1280, height: 720

15:39:14: preset: fast

15:39:14: profile: main

15:39:14: keyint: 250

15:39:14: CBR: yes

15:39:14: CFR: yes

15:39:14: max bitrate: 3500

15:39:14: buffer size: 3500

15:39:14: ------------------------------------------

The question is where the trouble come from ? :

RAM ?

NVIDIA GeForce 840M ?

OBS setting ?

Submitted by NITRONAT Xbox 720 Release Date 2015