performance fix: enable runtime consolidation if pointcounts too high
performance fix: enable runtime consolidation if pointcounts too high

this fixes the new test cases

OOM-Killer/metrictank,raintank/metrictank,raintank/raintank-metric,raintank/metrictank,replay/metrictank,raintank/metrictank,OOM-Killer/metrictank,OOM-Killer/metrictank,raintank/raintank-metric,replay/metrictank,raintank/metrictank,raintank/raintank-metric,replay/metrictank,replay/metrictank