fix pixels staying on after render

cmd/rpi/main.go

@@ -61,6 +61,11 @@ func main() {
 		log.Fatal(err)
 	}
 
+	currentPrice, err := mp.CurrentPrice()
+	if err != nil {
+		log.Fatal(err)
+	}
+
 	var blockHeight int
 	blockHeightMutex := &sync.Mutex{}
 	var fees mempool.Fees
@@ -72,6 +77,7 @@ func main() {
 	fees.FastestFee = highfee
 	fees.HalfHourFee = medfee
 	fees.HourFee = lowfee
+	price = currentPrice
 
 	go mp.Listen(ctx, msgs, errs, mdone)
 
@@ -105,7 +111,6 @@ func main() {
 			return
 		case <-ticker.C:
 			d.Clear()
-			d.Render()
 			err = updateSlots(d, price, blockHeight, fees.HourFee, fees.HalfHourFee, fees.FastestFee)
 			if err != nil {
 				log.Fatal(err)