Can I get some help with shortcut problems?

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ios8 shortcut problems

hi i'm using iphone5s with lateset version of ios which is ios 8,3
and every single time i go in to keyborad shortcuts it will take almost a minute to go into that option and there's uncountale of shortcuts in my phone i don't think i can delete them all one by one cuz it will forever
i've did some research about this problem using itunes backup my phone and use ibackupbot fix my backup and put them all back into my phone yeah i've tired but only for 2mins or shorter and those freaking annoying shortcuts will back again
is there any way that i can delete them all forever plz let me know thx a lot