LCD display with mipi to dsi board - raspberry pi slow

[mebin]

Hi friends,

I have purchased one LCD display with mipi dsi to hdmi conveter from alibaba.
link:
https://www.alibaba.com/product-detail/ ... b095nC7FqD

And i sucessfully interfaced the display with the below config.txt code

Code: Select all

hdmi_force_hotplug=1

#hdmi_ignore_edid=0xa5000080

disable_overscan=1
framebuffer_depth=24
gpu_mem=192
framebuffer_ignore_alpha=1
#start_x=1

hdmi_cvt=1440 2560 48
hdmi_group=2
hdmi_mode=87
hdmi_pixel_freq_limit=400000000
hvs_priority=0x32ff
max_framebuffer_width=1440
max_framebuffer_height=2560
framebuffer_width=1440
framebuffer_height=2560
config_hdmi_boost=4
#hdmi_timings=1440 0 16 16 64 2560 0 5 2 1 0 0 0 50 0 176947200 3

#hdmi_cvt 2560 1440 50

But the display is too slow. When I drag the window inside the Raspbian desktop it moves very slowly. What can I do?
Can anyone help me please

I'm just a beginner in raspberry pi

Thanks in advance