Optimus Laptop, dedicated GPU problem

Hi, my laptop is on Win10 with GTX970M. Because the game is running on DX8, so the game is running on the integrated card (Intel HD) instead of the graphic card. Due to Optimus tech I am not be able to force the game to run on the GPU either. Besides using wrapper such as dgvoodoo, which somehow cause the game crashes time to time, all methods I found so far are just not working. Please do come up a solution to fix this problem since I just returned to the game and I really want to enjoy as much as I can, thanks.

Spec:

Processor 1 ID = 0
Number of cores 4 (max 8)
Number of threads 8 (max 16)
Name Intel Core i7 6700HQ
Codename Skylake
Specification Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
Package (platform ID) Socket 1440 FCBGA (0x5)
CPUID 6.E.3
Extended CPUID 6.5E
Core Stepping R0
Technology 14 nm
TDP Limit 45.0 Watts
Tjmax 100.0 蚓
Core Speed 3291.9 MHz
Multiplier x Bus Speed 33.0 x 99.8 MHz
Stock frequency 2600 MHz
Max frequency 3500 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX, AVX2, FMA3, TSX
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4 x 256 KBytes, 4-way set associative, 64-byte line size
L3 cache 6 MBytes, 12-way set associative, 64-byte line size
FID/VID Control yes

Display adapter 0
Display name \\.\DISPLAY1
Name Intel(R) HD Graphics 530
Board Manufacturer Micro-Star International Co., Ltd. (MSI)
Memory size 1024 MB
PCI device bus 0 (0x0), device 2 (0x2), function 0 (0x0)
Vendor ID 0x8086 (0x1462)
Model ID 0x191B (0x1164)
Performance Level 0
Core clock 847.9 MHz

Display adapter 1
Name NVIDIA GeForce GTX 970M
Board Manufacturer Micro-Star International Co., Ltd. (MSI)
Revision A1
Memory size 6 GB
Memory type GDDR5
PCI device bus 1 (0x1), device 0 (0x0), function 0 (0x0)
Vendor ID 0x10DE (0x1462)
Model ID 0x13D8 (0x1164)
Performance Level 2D Desktop
Core clock 405.0 MHz
Memory clock 324.0 MHz
Performance Level Default
Core clock 405.0 MHz
Memory clock 810.0 MHz
Performance Level 3D Applications
Core clock 540.0 MHz
Memory clock 1600.0 MHz
Performance Level 3D Applications
Core clock 540.0 MHz
Memory clock 2505.0 MHz