Go to your "The Ball" config folder, which is located in your "My Games" folder in your Documents. Should be here - "Documents\My Games\The Ball\UDKGame\Config"

Open up "UDKEngine.ini" in notepad (or whatever) and click 'edit', then 'find' and search for "MaxSmoothedFrameRate", or scroll down until you find it. You should find this line of code -

MaxSmoothedFrameRate=62

I'm pretty sure it was set to 62. Just change 62 to 120, 144, 240, or whatever your monitor's refresh rate is.
for me it's this -

MaxSmoothedFrameRate=144

Unless you want you want to change the resolution too (instructions below), just save the file, and close it, job done.

Go to your "The Ball" config folder, which is located in your "My Games" folder in your Documents. Should be here - "Documents\My Games\The Ball\UDKGame\Config"

Open up "UDKGame.ini" in notepad (or whatever) and click 'edit', then 'find' and search for "1920x1200" or scroll down until you find this line of code -

[1920x1200 UTUIDataProvider_Resolutions]
FriendlyName=1920x1200

You should see several lines of code just like this, with different resolutions. This is how we add our custom resolutions.
If you use a standard 16:9, 2K, or 4K resolution, then add these two lines of code below -

[2560x1440 UTUIDataProvider_Resolutions]
FriendlyName=2560x1440

[3840x2160 UTUIDataProvider_Resolutions]
FriendlyName=3840x2160

Save the file, job done. Boot up the game, and change to your desired resolution. If you use a different resolution, then just enter that into this line of code instead. There is a simpler, more primitive way of doing this below if you'd prefer that.

Go to your "The Ball" config folder, which is located in your "My Games" folder in your Documents. Should be here - "Documents\My Games\The Ball\UDKGame\Config"

Open up "UDKEngine.ini" in notepad (or whatever) and click 'edit', then 'find' and search for "ResX", or scroll down until you find it. You should find two lines of code like this -

ResX=1920
ResY=1080

Simply change these two lines of text to your chosen resolution, for example -

ResX=2560
ResY=1440

Save the file, and job done.

Hopefully this helped!