inside the application package, open dm-launcher.sh and change the line reading
VMOPTIONS="`/usr/libexec/PlistBuddy -c "Print :VMOptions" "$PINFO_PLIST_FILE"`"
to
VMOPTIONS="-Dhttps.protocols=TLSv1.1 -Dhttps.cipherSuites=TLS_RSA_WITH_AES_128_CBC_SHA -Xms64m -Xmx512m"