Tower Wars Works but FPS on my hardware not good.

• Ubuntu 18.04.1 LTS (64 bit 4.15.0-33-generic)
• GeForce GT 540M (390.77)
• Proton 3.7.4

Hardware info from steam:

My hardware:
Computer Information:
Manufacturer: Unknown
Model: Unknown
Form Factor: Laptop
No Touch Input Detected

Processor Information:
CPU Vendor: GenuineIntel
CPU Brand: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz
CPU Family: 0x6
CPU Model: 0x2a
CPU Stepping: 0x7
CPU Type: 0x0
Speed: 2100 Mhz
4 logical processors
2 physical processors
HyperThreading: Supported
FCMOV: Supported
SSE2: Supported
SSE3: Supported
SSSE3: Supported
SSE4a: Unsupported
SSE41: Supported
SSE42: Supported
AES: Unsupported
AVX: Supported
CMPXCHG16B: Supported
LAHF/SAHF: Supported
PrefetchW: Unsupported

Operating System Version:
Ubuntu 18.04.1 LTS (64 bit)
Kernel Name: Linux
Kernel Version: 4.15.0-33-generic
X Server Vendor: The X.Org Foundation
X Server Release: 11906000
X Window Manager: Metacity (Marco)
Steam Runtime Version: steam-runtime-beta-release_2018-06-14

Video Card:
Driver: NVIDIA Corporation GeForce GT 540M/PCIe/SSE2
Driver Version: 4.6.0 NVIDIA 390.77
OpenGL Version: 4.6
Desktop Color Depth: 24 bits per pixel
Monitor Refresh Rate: 59 Hz
VendorID: 0x10de
DeviceID: 0xdf4
Revision Not Detected
Number of Monitors: 1
Number of Logical Video Cards: 2
Primary Display Resolution: 1366 x 768
Desktop Resolution: 1366 x 768
Primary Display Size: 13.54" x 7.64" (15.51" diag)
34.4cm x 19.4cm (39.4cm diag)
Primary Bus: PCI Express 16x
Primary VRAM: 1024 MB
Supported MSAA Modes: 2x 4x 8x 16x

Sound card:
Audio device: Realtek ALC269VB

Memory:
RAM: 7924 Mb

Miscellaneous:
UI Language: English
LANG: ru_RU.UTF-8
Total Hard Disk Space Available: 112162 Mb
Largest Free Hard Disk Block: 44159 Mb
VR Headset: None detected