RHYTHM RX65 MT6582 slow work done with inferno tool

[love_4all]

16:49:17 Available Ports:COM1 COM3 COM4 COM254 COM255
16:49:17 Current Port:Com0
16:50:23 Reading phone info...

16:50:23
16:50:23 Operation:
1. Power off the phone.
2. Please insert USB cable within 20 seconds.
16:50:23
16:50:35 Connecting...
16:50:36 CPU TYPE:MT6582
16:50:36 Hardware version:CB00
16:50:36 Software version:0001
16:50:36 SecCfgVal :0x00000000
16:50:36 BromVersion :0xFF
16:50:36 BLVersion :0x01
16:50:38 Boot downloading...
16:50:41 EMMC_ID:0x90014A4834473164040500A2EFBC3287
16:50:41 EMMC_PRODUCT_NAME: 0x483447316404
16:50:41 EMMC_BOOT1_SIZE: 0x00400000
16:50:41 EMMC_BOOT2_SIZE: 0x00400000
16:50:41 EMMC_PRMB_SIZE: 0x00400000
16:50:41 EMMC_GP1_SIZE: 0x00000000
16:50:41 EMMC_GP2_SIZE: 0x00000000
16:50:41 EMMC_GP3_SIZE: 0x00000000
16:50:41 EMMC_GP4_SIZE: 0x00000000
16:50:41 EMMC_USER_SIZE: 0x0E9000000(3.64 G)
16:50:41
16:50:41 INT RAM: 128KB SDRAM EXT RAM: 512MB DRAM
16:50:41 PreLoader USB VCOM Port (COM25)
16:50:41 Finding partition.
16:50:41 Backup file,please wait a moment...
16:50:42 BasicInfo :
16:50:43 Brand : RHYTHM
16:50:43 ProdName : RX65
16:50:43 ProdModel : RHYTHM RX65
16:50:43 Device : RHYTHM_RX65
16:50:43 AndroidVer: 4.4.2
16:50:43 MTK CPU : MT6582
16:50:43 MTK PRJ : RIVO_RHYTHM_RX65_S003
16:50:43 Display ID: RIVO_RHYTHM_RX65_S003
16:50:43 Board ID : RHYTHM_RX65
16:50:43 Build Date: Mon Apr 13 19:04:15 CST 2015
16:50:43 Custom Build Ver: 1428922965
16:50:43
16:50:43 Read phone info OK.

16:53:03 BasicInfo :
16:53:03 Brand : RHYTHM
16:53:03 ProdName : RX65
16:53:03 ProdModel : RHYTHM RX65
16:53:03 Device : RHYTHM_RX65
16:53:03 AndroidVer: 4.4.2
16:53:03 MTK CPU : MT6582
16:53:03 MTK PRJ : RIVO_RHYTHM_RX65_S003
16:53:03 Display ID: RIVO_RHYTHM_RX65_S003
16:53:03 Board ID : RHYTHM_RX65
16:53:03 Build Date: Mon Apr 13 19:04:15 CST 2015
16:53:03 Custom Build Ver: 1428922965
16:53:03
16:53:03
16:53:03 Operation:
1. Power off the phone.
2. Please insert USB cable within 20 seconds.
16:53:03
16:53:12 Connecting...
16:53:13 CPU TYPE:MT6582
16:53:13 Hardware version:CB00
16:53:13 Software version:0001
16:53:13 SecCfgVal :0x00000000
16:53:13 BromVersion :0xFF
16:53:13 BLVersion :0x01
16:53:15 Boot downloading...
16:53:17 EMMC_ID:0x90014A4834473164040500A2EFBC3287
16:53:17 EMMC_PRODUCT_NAME: 0x483447316404
16:53:17 EMMC_BOOT1_SIZE: 0x00400000
16:53:17 EMMC_BOOT2_SIZE: 0x00400000
16:53:17 EMMC_PRMB_SIZE: 0x00400000
16:53:18 EMMC_GP1_SIZE: 0x00000000
16:53:18 EMMC_GP2_SIZE: 0x00000000
16:53:18 EMMC_GP3_SIZE: 0x00000000
16:53:18 EMMC_GP4_SIZE: 0x00000000
16:53:18 EMMC_USER_SIZE: 0x0E9000000(3.64 G)
16:53:18
16:53:18 INT RAM: 128KB SDRAM EXT RAM: 512MB DRAM
16:53:18 PreLoader USB VCOM Port (COM25)
16:53:18 Finding partition.
16:53:20 Orignal preloader backup path:C:\Inferno_Volcano_MTK\backup\preloader_huaqi n82_cwet_kk_20161106_165320.bin
16:53:28 Writing MBR .
16:53:29 Writing EBR1 .
16:53:29 Writing lk.bin .
16:53:29 Writing boot.img .
16:53:31 Writing recovery.img .
16:53:32 Writing secro.img .
16:53:32 Writing logo.bin .
16:53:33 Writing system.img .
17:00:31 Writing cache.img .
17:00:33 Writing userdata.img .
17:00:52