PBE taking up 23 gigabytes of space

Hi everyone, My PBE Client is taking up 23.4 GB of space out of my 110 GB hard drive, while my NA client only takes 10 GB. Specifically directing this towards Rioters, is there any way for me to reduce the PBE Client Shell's size? I am running out of hard drive space and am hoping that there are some useless files in the PBE folder that I can delete. Thanks!
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