diff --git a/docs/cfe_card.md b/docs/cfe_card.md
index 1131071..eb77238 100644
--- a/docs/cfe_card.md
+++ b/docs/cfe_card.md
@@ -19,52 +19,28 @@ They have extremely fast reading and writing speeds.
 
 ## Which size should I choose?
 
-I recommend the 2230 size, which is easy to carry and will not hinder your shooting when in use. But if you are shooting for a long time and the capacity is large, I recommend the 2280 size.
-
-Because the 2230 card is shorter and has less exposed parts, the heat dissipation effect is worse than the 2280 card. When the card temperature is too high due to long-term recording, it will slightly affect the CPU usage and writing speed during writing.
+I recommend the 2230 size, which is easy to carry and will not hinder your shooting when in use. But if you are shooting for a long time and the capacity is large, I recommend the 2280 size. Because the 2230 card is shorter and has less exposed parts, the heat dissipation effect is worse than the 2280 card. When the card temperature is too high, it will slightly affect the CPU usage and writing speed during writing. (But the impact may be small, depending on your cooling measures)
 
 The following are the speeds I tested, it will be affected by the SSD, so it is just for reference: 
 
 - 2230
 
 ```shell
-# Initial
-
 pi@cinepi:~ $ ./test_speed_multi /media/RAW
 Total data written: 1500 MB
 Time taken: 2.05 seconds
 Write speed: 730.71 MB/s
 User CPU time used: 0.00 seconds
 System CPU time used: 0.04 seconds
-
-# After fever
-
-pi@cinepi:~ $ ./test_speed_multi /media/RAW
-Total data written: 1500 MB
-Time taken: 2.42 seconds
-Write speed: 620.26 MB/s
-User CPU time used: 0.00 seconds
-System CPU time used: 0.04 seconds
 ```
 
 - 2280
 
 ```shell
-# Initial
-
 pi@cinepi:~ $ ./test_speed_multi /media/RAW
 Total data written: 1500 MB
 Time taken: 2.03 seconds
 Write speed: 740.12 MB/s
 User CPU time used: 0.00 seconds
 System CPU time used: 0.04 seconds
-
-# After fever
-
-pi@cinepi:~ $ ./test_speed_multi /media/RAW
-Total data written: 1500 MB
-Time taken: 2.03 seconds
-Write speed: 737.25 MB/s
-User CPU time used: 0.00 seconds
-System CPU time used: 0.05 seconds
-```
\ No newline at end of file
+```