We have an Engenius ENH220EXT on top of our office set as an AP that transmits the internet to several surrounding buildings successfully (full line of site). Our Worship Center about 400 feet away has some trees between it and the office AP. The resulting speed is reduced from 11mbp to 4 or 5. On top of the Worship Center is another ENH220EXT set in bridge mode. and then to an indoor AP via a switch. Would I benefit from changing the existing antennas on the Worship Center bridge ENH220EXT to a directional antenna such as an Engenius SA2216? Any thoughts?