Help New SVX owner here

Hi
First - I recently started noticing the temperature guage - and I noticed it goes to H very quickly. A few observations - it seems to have a mind of its won kind of - sometimes when I am just waiting to pay a toll it does not cool off. It gets to H pretty quickly on hills, If I keep it at below 2k rpms it seems fine. A few times with NO throttle apllied the rpm still reads at 2k RPMs.

Second- Steering - sometimes it very smooth a low speeds , and sometimes I feel like I am driving a manual it is very tuff to steer.

Third - the A/C turns on nice and cold after say 5 to 10 minutes no more cold air.

Anyinsight and advice sincerely appreciated.