Your shower likely has an anti-scald valve that can be adjusted. When we moved into our new house I noticed the showers were different temperatures but neither were as hot as the kitchen sink. Ten minutes of googling, 5 minutes of tool scrounging and 20 minutes to find the hidden allen screws on the tap and bam, adjusted the temperature perfectly so I can just get in and open the valve completely without scalding myself. Yours is probably set too hot.
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