Extremely bad shaders performance

Ive recently updated from 1.21.1 to 1.21.7
All shaders that i have used previoulsy now cause a meltdown in my gpu for some reason
All mods im using are DH, Soudium and Iris, nothing more

On 1.21.1 i have:
50-55 celsius with DH off
65-70 celsius with DH enabled

On 1.21.7 on the other hand:
63-68 with DH off
instant 83+ with DH enabled and low fps making the game unplayable

is it just me or is it a common issue
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