nope, its good where it is. Do you want him to sit under the light all day??
You are giving him useable temps. He only needs it for 10 min, thats great, he is regulating his temps. Igs that sit under their light all day are trying to warm up to where they want to be but are not given high enough temps to achieve optimum temps. I dont know what you read or from where but those temps are too low even for a green ig, thats old school thinking. The book you should be reading is Lemm's book, CYCLURA. SDZ/CRES use 150 basking temps. I've measured temps that high being used in the wild.
Why do you think its to high?

jf