Blinkers -of course they make a horse run faster and of course they do not make a horse run faster, .For the benefit of Curious I shall relate the answer to his Trabant. It is stuck in second gear and won't go faster so he takes it to his Licensed garage and they add a little thingy and wow he is in top gear and GOING FASTER.
When a horse is not concentrating it messes around and does not go at top speed so a trainer applies blinkers and [sometimes] it helps the horse concentrate and causes it to run faster.
Why do posters ask questions when they already know the answers ? Are they just 'stirring' ? Why do they drive old German cars ?