From the manual
"Adjust Power Management Settings.
[AUTO POWER OFF]
Choose the length of time before the camera turns off automatically when no operations are performed. Shorter times reduce the drain on the battery; if [OFF] is selected, the camera must be turned off manually. Note that in some situations the camera turns off automatically even when [OFF] is selected.
[OVF POWER SAVE MODE]
Select [ON] to reduce power consumption and increase the number of pictures that can be taken on a single charge when pictures are framed in the optical viewfinder.
Power consumption is not reduced when the electronic viewfinder or electronic range finder is used.
[HIGH PERFORMANCE]
Select [ON] for faster focus and to reduce the time needed to restart the camera after it has been turned off."
So, don't use Auto Power Off or OVF Power Save Mode and use High-Performance Mode. This will increase battery consumption. Limiting LCD usage compensates for not using the power saving options. I carry two batteries for the X100T and three for the X-Pro 2.
Over the years I tried third-party batteries and two of then swelled. Now I only use OEM batteries. Someone will certainly post they only use third-party batteries and never experienced a failure. I admire their good fortune.