Running Shoes

I have a half marathon race coming soon and wondering if it’s worth getting a new pair of trainers for my race to help with getting my goal time. If so which pair do people recommend?!

I’m currently using Adidas Evo SL for all of my runs and unsure if it’s worth getting a faster shoe or using them as my fast shoe and getting a new daily. Or even buying a new pair at all!!

Any input or support regarding this is appreciated!