big__col - I'm getting low response when loadin...

I'm getting low response when loading me dashboard. I have a couple of switches that are also counters, for the bilge pumps, 5 gauges for water tank, speed, depth, battery volts/watts, a couple of charts for depth and water tank history. none of these seems complex... the bilge switch/alarm is the most complex, scrn shot attached. i often get a Chrome message asking me if i want to wait for Ned Red to load, or stop. otherwise it just takes time to load, and often doesn't load all the data within the gauges and graphs straightaway, sometime a refresh/f5 is required. any pointers in troubleshooting this issue please?