Question on Canon 60D

I am currently using a Canon t3 with a canon 18-135 IS lense.  I have been very satisified with the results.  I mainly use the camera for landscape photos.  I have recently been shooting more sports (High school basketball and occasionally college basketball) along with high school baseball and soccer.  I recently purchased a Tamron 70-200 2.8 lense for indoor sports.  I notice that the camera just does not do that great of job with auto focus.  Sometimes the results are good and sometimes they are not.  My question, will the Canon D60 produce better results ( sharper, clearer pictures) with a more dependable auto focus?

Thanks.