New PC Build

Hello,
I'm fairly new to DaVinci Resolve, and need some help to figure out what I'm doing. I'm currently making guitar cover videos, with multiple guitar takes, angles, close ups, etc, and putting all the clips together to make my cover video. During my editing process, splicing all the clips together, can be painfully slow on my current computer. My CPU usage is spiked, and most of my memory used in Task Manager, I can hear my fans spinning like a jet engine, and it's a lot of click and wait for it to buffer out and be usable again. I think I just need a new computer. I'm using an old i7-2600, with 14GB of RAM, Samsung 1TB SSD, and I do have an NVidia GTX 960 graphics card in right now.
Normally, I see the GPU idling very low, while my CPU is very high. I have looked through settings and tried to set everything to use GPU that I can - but I'm finding in some forums, that the free version of Resolve doesn't really use the GPU, so that is less important as the CPU.
So in the hunt of a new CPU, and using Resolve free where the GPU might not be used as much, am I better off getting a faster processor with fewer cores (AMD Ryzen 5600X for example), or more cores (Intel i7-10700K for example)?
I'm willing to accept I need to spend the money and finally replace my 10ish year old computer, but if I build a new computer, want something with the flexibility it will perform great for several years to come, and if I get more serious with my video editing in the future, I could handle something like upgrading to the DaVinci Resolve Studio version, to get more features and utilization of the GPU. Trying to stay somewhat on a budget, so the $200-300ish price on a processor.
Any input, tips, tricks, comments are appreciated in helping me figure out this new skill.
Thank you!
I'm fairly new to DaVinci Resolve, and need some help to figure out what I'm doing. I'm currently making guitar cover videos, with multiple guitar takes, angles, close ups, etc, and putting all the clips together to make my cover video. During my editing process, splicing all the clips together, can be painfully slow on my current computer. My CPU usage is spiked, and most of my memory used in Task Manager, I can hear my fans spinning like a jet engine, and it's a lot of click and wait for it to buffer out and be usable again. I think I just need a new computer. I'm using an old i7-2600, with 14GB of RAM, Samsung 1TB SSD, and I do have an NVidia GTX 960 graphics card in right now.
Normally, I see the GPU idling very low, while my CPU is very high. I have looked through settings and tried to set everything to use GPU that I can - but I'm finding in some forums, that the free version of Resolve doesn't really use the GPU, so that is less important as the CPU.
So in the hunt of a new CPU, and using Resolve free where the GPU might not be used as much, am I better off getting a faster processor with fewer cores (AMD Ryzen 5600X for example), or more cores (Intel i7-10700K for example)?
I'm willing to accept I need to spend the money and finally replace my 10ish year old computer, but if I build a new computer, want something with the flexibility it will perform great for several years to come, and if I get more serious with my video editing in the future, I could handle something like upgrading to the DaVinci Resolve Studio version, to get more features and utilization of the GPU. Trying to stay somewhat on a budget, so the $200-300ish price on a processor.
Any input, tips, tricks, comments are appreciated in helping me figure out this new skill.
Thank you!