solr 9 docker container searches are 10^5 slower than solr 8 docker container

NAME=solr8
PORT=8983
CORE=demo  # because that's available in the docker image - yay!
VERSION=8.11.1 

# create a named volume so you can retain the index and mount it to other versions of docker run
docker volume create $NAME
docker run \
            --mount type=volume,source=$NAME,target=/var/solr \
            --restart always -d -p 127.0.0.1:$PORT:8983 \
            --name $NAME -e SOLR_HEAP=8000m -t \
            --memory="9000m" \
            --memory-swap="9000m" \
            --memory-swappiness=0 \
            --mount type=bind,source=/mnt/c/Users/foo,target=/opt/solr/mydata \
            solr:$VERSION \
            solr-demo

# Solr 8
docker exec -ti --user=solr $NAME bash -c \
    'cp -r /opt/solr/server/solr/configsets/_default/conf/* /var/solr/data/$CORE/conf/'
docker restart $NAME

# seed PDFs -- capitalization MUST match filesystem here!!!
docker exec --user=solr \
            $NAME \
            find \
                 /opt/solr/mydata/Dropbox/PDFs/Shared \
            -not -path \
                '/opt/solr/mydata/Dropbox/PDFs/*/.stversions*' \
            -name '*.pdf' \
            -type f \
            -exec bin/post -c $CORE \
            "{}" ';'

NAME=solr9
PORT=8984
CORE=demo  # because that's available in the docker image - yay!
VERSION=latest # create a named volume so you can retain the index and mount it to other versions of docker run
docker volume create $NAME
docker run \
            --mount type=volume,source=$NAME,target=/var/solr \
            --restart always -d -p 127.0.0.1:$PORT:8983 \
            --name $NAME -e SOLR_HEAP=8000m -t \
            --memory="9000m" \
            --memory-swap="9000m" \
            --memory-swappiness=0 \
            --mount type=bind,source=/mnt/c/Users/foo,target=/opt/solr/mydata \
            solr:$VERSION \
            solr-demo# seed PDFs -- capitalization MUST match filesystem here!!!
docker exec --user=solr \
            $NAME \
            find \
                 /opt/solr/mydata/Dropbox/PDFs/Shared \
            -not -path \
                '/opt/solr/mydata/Dropbox/PDFs/*/.stversions*' \
            -name '*.pdf' \
            -type f \
            -exec bin/post -c $CORE \
            "{}" ';'
 

/usr/bin/time -f %e curl -G --data-urlencode q=xfoo -s 'http://localhost:$PORT/solr/$CORE/select?fl=highlighting,score&hl.method=unified&hl=true&hl.simple.pre=&hl.simple.post=&hl.snippets=3&hl.fragsize=100&hl.maxMultiValuedToMatch=2&hl.maxAnalyzedChars=0&hl.mergeContiguous=true&hl.requireFieldMatch=true&rows=9999