https://sematext.com/opensee/m/Solr/eHNloIkFn1gU81N?subj=Re:+limiting+the+total+number+of+documents+matched
frange could possible help (range query on an arbitrary function).
http://www.lucidimagination.com/blog/tag/frange/
So perhaps something like
q={!frange l=0.85}query($qq)
qq=<the original relevancy query>
where 0.85 is the lower bound you want for scores and qq is the normal
relevancy query
另外